Quadratic Functions: Standard Form — Unit test Answers

A rectangle’s length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of the rectangle?

What is the first step in solving the quadratic equation -5x2+8=133?

Which equation results from taking the square root of both sides of (x – 9)2 = 81?

A rectangle’s width is 2 meters shorter than its length, l. Its area is 168 square meters. Which equation can be used to find the length of the rectangle?

A function g(x) has x-intercepts at (, 0) and (6, 0). Which could be g(x)?

What are the solutions to x2 + 8x + 7 = 0?

A rectangle has an area of 40 square units. The length is 6 units greater than the width.

Which represents the solution(s) of the graphed system of equations, y = x2 – 2x and y = –2x – 1?

What is the solution to 2x2+8x=x2-16?

Which represents the solution(s) of the graphed system of equations, y = –x2 + x + 2 and y = –x + 3?

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

Which represents the solution(s) of the system of equations, y = x2 – 6x + 8 and y = –x + 4? Determine the solution set by graphing.

Which equations are true for x = –2 and x = 2? Select two options