Modeling with Quadratic Equations — Unit test

Question 1

Which represents the solution(s) of the system of equations, y = x2 – x + 1 and y = x? Determine the solution set by graphing.

Revolt · Accepted Answer

(1, 1)

Question 2

In which quadrant is the number 6 – 8i located on the complex plane?

Revolt · Accepted Answer

IV

Question 3

Which statement about the following equation is true?2x2 – 9x + 2 = –1

Revolt · Accepted Answer

The discriminant is greater than 0, so there are two real roots.

Question 4

Which equation represents a graph with a vertex at (–3, 2)?

Revolt · Accepted Answer

y = 4x2 + 24x + 38

Question 5

According to the Rational Root Theorem, which is a factor of the polynomial f(x) = 3x3 – 5x2 – 12x + 20?

Revolt · Accepted Answer

3x – 5

Modeling with Quadratic Equations — Unit test Answers