Modeling with Quadratic Equations — Cumulative exam

Question 1

Which expression is equivalent to ?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/evresources/3111-05-03/mc022-4.jpg

Question 2

What is the value of ?

Revolt · Accepted Answer

1

Question 3

What is the value of ?

Revolt · Accepted Answer

1

Question 4

The product of two consecutive integers is 272. Which quadratic equation can be used to find x, the smaller number?

Revolt · Accepted Answer

x2 + x − 272 = 0

Question 5

The variables X, Y, and Z represent polynomials where X = a, Y = 3a – 5, and Z = a2 + 2. What is X2Y – Z in simplest form?

Revolt · Accepted Answer

3a3 – 6a2 – 2

Question 6

three

Revolt · Accepted Answer

The vertex of the function is at (–3,–16).; The graph is increasing on the interval x > –3.; The graph is positive only on the intervals where x 1.

Question 7

What is the greatest common factor of 4xy2 and 20x2y4?

Revolt · Accepted Answer

4xy2

Question 8

Which is a factor of x2 + 5x − 24?

Revolt · Accepted Answer

(x + 8)

Question 9

The graph of the function f(x) = (x + 2)(x − 4) is shown.

Revolt · Accepted Answer

all real values of x where 1 < x < 4

Question 10

On a coordinate plane, 2 lines are shown. Line A B has points (negative 4, negative 2) and (4, 4). Line C D has points (0, negative 3) and (4, 0).

Revolt · Accepted Answer

They are parallel because their slopes are equal.

Modeling with Quadratic Equations — Cumulative exam Answers