💬 👋 We’re always here. Join our Discord to connect with other students 24/7, any time, night or day.Join Here!
Get the answer to your homework problem.
Try Numerade free for 30 days
Like
Report
In Exercises 59-64, use a graphing utility to graph the quadratic function. Find the -intercepts of the graph and compare them with the solutions of the corresponding quadratic equation when $ f(x) = 0 $.
$ f(x) = 2x^2 - 7x - 30 $
$\left(\frac{-5}{2}, 0\right),(6,0)$
Algebra
Chapter 2
Polynomial and Rational Functions
Section 1
Quadratic Functions and Models
Quadratic Functions
Complex Numbers
Polynomials
Rational Functions
Campbell University
McMaster University
Baylor University
Lectures
01:32
In mathematics, the absolu…
01:11
01:30
In Exercises 59-64, use a …
0:00
01:39
01:48
02:08
01:35
For Exercises $61-63,$ let…
01:36
In Exercises 57-68, use a …
01:20
01:00
Let's use a graphing utility to graft this quadratic f. So here we are quadratic function. Let's zoom out a little bit and if we zoom in, we could see what the X intercepts are. Negative two and a half and six since record those values, this is from the computer, the calculator. And now we can verify this algebraic Lee by setting the Y value to zero. So said this equal to zero and then saw for X There many ways to do this one way is to just take the left hand side and to try to factor it. So here we want numbers that multiplied to get thirty, and the one that works here is you can do plus five and then a minus six. And this last equation implies that either two X Plus five zero or X minus six zero. So solve these last two equations for X, and you get the ex intercepts. And as you can see, the solution's agree with what we found from the consulate
View More Answers From This Book
Find Another Textbook
Numerade Educator
In mathematics, the absolute value or modulus |x| of a real number x is its …
In Exercises 59-64, use a graphing utility to graph the quadratic function. …
For Exercises $61-63,$ let $$f(x)=\frac{x^{2}}{x-2}+1$ and $g(x)=\frac{4 x-2…
In Exercises 57-68, use a graphing utility to graph the equation. Use a stan…
01:38
Fill in the blanks.
A polynomial function of degree and leading coef…
02:24
In Exercises 9 - 16, match the polynomial function with its graph. [The grap…
01:26
In Exercises 21- 30, describe the right-hand and left-hand behavior of the g…
01:21
Write a polar equation of a conic with the focus at the origin and the given…
03:46
In Exercises 47-56, write the standard form of the equation of the parabola …
02:55
In Exercises 71-74, find two positive real numbers whose product is a maximu…
02:48
Solve the initial-value problem.
$ 4y" - 20y' + 25y = 0 $,…
02:58
Solve the differential equation.
$ y'' - 4y' + 13y = …
02:46
A rancher has 200 feet of fencing to enclose two adjacent rectangular corral…
02:21
The orbit of Mars around the sun is an ellipse with eccentricity $ 0.093 $ a…
Create an account to get free access
Join Numerade as a
By clicking Sign up you accept Numerade's Terms of Service and Privacy Policy
or sign in with
Already have an account? Log in
