Section 1
The Real Number Line
On a number line, the numbers to the left of zero are ? numbers, and the numbers to the right of zero are ? numbers.
Zero and the positive integers are also called ? numbers.
Graph the numbers on a number line.$-5,-1,4$
Graph the numbers on a number line.$-3,0,3$
Graph the numbers on a number line.$6,-2,0.5$
Graph the numbers on a number line.$-1,-2,-\frac{2}{3}$
Complete the statement using $<$ or $>.$ Use the number line shown.$-4 $ $?$ $-5$
Complete the statement using $<$ or $>.$ Use the number line shown.$0$ $?$ $-8$
Complete the statement using $<$ or $>.$ Use the number line shown.$6.7$ $?$ $-6.7$
Complete the statement using $<$ or $>.$ Use the number line shown.$\frac{3}{2}$ $?$ $\frac{2}{3}$
Write the numbers in increasing order.$2,-3,-8,1,-2$
Write the numbers in increasing order.$1.2,-4,5,7,-6.1$
Write the numbers in increasing order.$-7,-9,2, \frac{5}{4},-\frac{1}{5}$
Graph the numbers on a number line.$0,2,6$
Graph the numbers on a number line.$10,9,3$
Graph the numbers on a number line.$5,2,8$
Graph the numbers on a number line.$-7,-4,-8$
Graph the numbers on a number line.$-1,-6,-7$
Graph the numbers on a number line.$-2,-4,-6$
Graph the numbers on a number line.$1,-2,3$
Graph the numbers on a number line.$-3,1,5$
Graph the numbers on a number line.$-4,4,-5$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$-2,3$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$4,-6$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$-1,-6$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$-7,-5$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$0,-4$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$8,-8$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$10,11$
Graph the numbers on a number line. Then write two inequalities that compare the numbers.$9,-12$
Match the number with its position on the number line.8.1
Match the number with its position on the number line.$-1.8$
Match the number with its position on the number line.$\frac{8}{3}$
Match the number with its position on the number line.$-\frac{15}{2}$
Graph the numbers on a number line.$0.5,-1.5,2.5$
Graph the numbers on a number line.$-5.6,-0.3,2$
Graph the numbers on a number line.$4.2,4.4,4.6$
Graph the numbers on a number line.$-\frac{7}{8}, 0,-0.5$
Graph the numbers on a number line.$4.3,-\frac{9}{2},-2.8$
Graph the numbers on a number line.$\frac{3}{4},-\frac{7}{3},-3$
Graph the numbers on a number line.$\frac{1}{2},-\frac{2}{3},-\frac{1}{2}$
Graph the numbers on a number line.$\frac{1}{3}, \frac{3}{2}, \frac{11}{4}$
Graph the numbers on a number line.$\frac{9}{10},-\frac{2}{5},-\frac{8}{3}$
Write the numbers in increasing order.$4.6,0.7,-4,-1.8,3,-0.6$
Write the numbers in increasing order.$-0.3,0.2,0,2.0,-0.2,-3.0$
Write the numbers in increasing order.$6.3,-6.8,-6.1,6.1,-6.2,6.7$
Write the numbers in increasing order.$\frac{9}{2}, 3.4,4.1,-5.2,-5.1,-\frac{10}{4}$
Write the numbers in increasing order.$7,-\frac{1}{2}, 2,-\frac{3}{4},-5, \frac{1}{6}$
Write the numbers in increasing order.$4.8,-2.6,0,-\frac{7}{2}, \frac{1}{2},-\frac{1}{2}$
Complete the statement using $<$ or $>$.If $x>-4,$ then $-4 ? x$
Complete the statement using $<$ or $>$.If $3<y,$ then $y ? 3$
Elevation is represented by comparing a location to sea level, which is given a value of zero. A location above sea level has a positive elevation, and a location below sea level has a negative elevation.Granite Peak, Montana, $12,799$ feet above sea level
Elevation is represented by comparing a location to sea level, which is given a value of zero. A location above sea level has a positive elevation, and a location below sea level has a negative elevation.New Orleans, Louisiana, 8 feet below sea level
Elevation is represented by comparing a location to sea level, which is given a value of zero. A location above sea level has a positive elevation, and a location below sea level has a negative elevation.Long Island Sound, Connecticut, sea level
A star’s brightness as it appears to a person on Earth is measured by its apparent magnitude. The lesser the apparent magnitude, the brighter the star.Graph the apparent magnitudes on a number line. Label each point with the name of the star.
A star’s brightness as it appears to a person on Earth is measured by its apparent magnitude. The lesser the apparent magnitude, the brighter the star.Which stars have an apparent magnitude that is less than the apparent magnitude of Altair?
A star’s brightness as it appears to a person on Earth is measured by its apparent magnitude. The lesser the apparent magnitude, the brighter the star.Which stars have an apparent magnitude that is greater than the apparent magnitude of Procyon?
A star’s brightness as it appears to a person on Earth is measured by its apparent magnitude. The lesser the apparent magnitude, the brighter the star.Which star has the least apparent magnitude and so looks the brightest?
A star’s brightness as it appears to a person on Earth is measured by its apparent magnitude. The lesser the apparent magnitude, the brighter the star.Which star has the greatest apparent magnitude and so looks the dimmest?
Which inequality is true?A) $-9>-5$B) $9<5$C) $9<-5$D) $-9<5$
Which number is less than $-0.1 ?$F) $-10$G) 0H) 0.001J) 10
Which set of numbers is in increasing order?A) $-1.9,1.8,-0.5,0,0.5$B) $-1,9,-0,5,0,0,5,1,8$C) $0,-0.5,0.5,1.8,-1.9$D) $-0.5,0,0.5,1.8,-1.9$
Find the area of the object.The top of a computer desk measures 2 feet by 2 feet.
Find the area of the object.The cover of a children’s book is 4 inches long and 4 inches wide.
Find the area of the object.A square piece of construction paper has a side length of 9 centimeters.
Use mental math to solve the equation.$9-y=1$
Use mental math to solve the equation.$t+6=10$
Use mental math to solve the equation.$2 a=8$
Use mental math to solve the equation.$15 \div r=3$
Use mental math to solve the equation.$\frac{k}{2}=8$
Use mental math to solve the equation.$\frac{27}{n}=9$
The table shows the number of births (in thousands) in the United States by month for 1997. Make a bar graph of the data.
When it is $70^{\circ} \mathrm{F}$, the function $T=0.08 \mathrm{H}+64.3$ gives the apparent temperature $T$ (in degrees Fahrenheit) based on the relative humidity $\mathrm{H}$ (as a percent).Copy and complete the input-output table.
When it is $70^{\circ} \mathrm{F}$, the function $T=0.08 \mathrm{H}+64.3$ gives the apparent temperature $T$ (in degrees Fahrenheit) based on the relative humidity $\mathrm{H}$ (as a percent).Use the table to draw a graph that represents the function.
When it is $70^{\circ} \mathrm{F}$, the function $T=0.08 \mathrm{H}+64.3$ gives the apparent temperature $T$ (in degrees Fahrenheit) based on the relative humidity $\mathrm{H}$ (as a percent).Determine the range of the function.
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.18
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.35
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.47
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.64
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.100
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.101
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.110
Write the prime factorization of the number if it is not a prime. If the number is a prime, write prime.144