5. (4, 3) and (7, 8)
Answer
6. (4, 5) and (3, 8)
7. (-2, 3) and (4, 8)
Answer
8. (-2, -2) and (4, -4)
9. (a, b) and (c, d)
Answer
10. (-a + 1, b - 1) and (a + 1, -b)
11. Given the equation $y = 2x - 3$, answer the following questions.
a. If $x$ increases by 1 unit, what is the corresponding change in $y$?
Answer
b. If $x$ decreases by 2 units, what is the corresponding change in $y$?
Answer
12. Given the equation $2x + 3y = 4$, answer the following questions.
a. Is the slope of the line described by this equation positive or negative?
b. As $x$ increases in value, does $y$ increase or decrease?