Quadratic Equations and their Related Functions

Question 1

Which graph represents a quadratic function that has one real zero?

Revolt · Accepted Answer

Answer image: https://r14.core.learn.edgenuity.com//media.edgenuity.com/evresources/3109/3109-10/3109-10-01/3109-10-01-assessment/3109-10-01-03c.png

Question 2

Which quadratic function has one real solution?

Revolt · Accepted Answer

0 = (x – 3)(x – 3)

Question 3

Question 4

Revolt · Accepted Answer

f(x) = 0.5(x + 3)(x − 1)

Question 4

0123

Revolt · Accepted Answer

1

Question 5

Use the graphing calculator to graph and find the zeros of the function y = 2x2 + 0.4x – 19.2. The zeros of the function are

Revolt · Accepted Answer

–3.2 and 3.

Question 6

Question 7

Revolt · Accepted Answer

Answer image: https://r14.core.learn.edgenuity.com//media.edgenuity.com/evresources/f38c5429eead807d5a27f9b583754887.png

Question 7

Use the graphing calculator to graph the quadratic function y = 2x2 + 2x – 40. What are the zeros of the function?

Revolt · Accepted Answer

4 and –5

Question 8

Graph the quadratic function y = 2x2 − 6x − 140. What are the solutions of the quadratic equation 0 = 2x2 − 6x − 140?

Revolt · Accepted Answer

−7 and 10

Question 9

The quadratic function f(x) = –x2 – 6x – 8 is graphed.

Revolt · Accepted Answer

–2 and –4

Quadratic Equations and their Related Functions Answers