Rewriting Expressions with Radicals — Unit test Answers

The function g(x) is defined as g(x) = 6x2 + 23x – 4. When does g(x) = 0?

Fiona is completing the square to solve the polynomial equation.x2 – 4x + 1 = 0

Which function has real zeros at x = −10 and x = −6?

Which statement is true about the function f(x)= –?

Combine these radicals.

What values of b satisfy 4(3b + 2)2 = 64?

Which is a solution to the equation?(x − 3)(x − 5) = 35

The function f(x)= – is shown on the graph.

Which equation has an a-value of –2, a b-value of 1, and a c-value of 3?

Mischa wrote the quadratic equation 0=-x2+4x-7 in standard form. If a = -1, what is the value of c in her equation?

What are the solutions to m2 – 9 = 0?

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = –6. Which function could Heather be writing?

Liliana decides to crop a square photo 2 inches on each side to fit it into a frame. The area of the original photo was 121 square inches. In the equation (x + 2)2 = 121, x represents the side measure of the cropped photo.

Nathan has a rectangular plot of grass in his backyard that has dimensions of meters in width and meters in length. What is the total area of the plot of grass? Recall that the area of a rectangle is the width multiplied by the length.

Sandra bought 120 square feet of carpet for a room in her new house. If the room is square, what is the length of each side of the room?Recall that the area of a square is calculated by l2, where l is the length of one side.