Unit Test Answers

On a coordinate plane, a parabola opens up. It goes through (negative 3.25, 5), has a vertex of (1.75, negative 2.75), and goes through (6.25, 5). Solid circles appear on the parabola at (negative 3, 4), (0, negative 2), (1.75, negative 2.75), (3, negative 2), (6, 4).

Which is the graph of the function f(x) = x2 + 2x + 3?

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

Which statements about the function are true? Select three options.

Given the function f(x) = −2x2 + 4x − 7, find f(−4).

The function f(x) = –x2 – 4x + 5 is shown on the graph.

What are the x-intercepts of the graph of the function f(x) = x2 + 5x − 36?

The graph of the function f(x) = −3x2 − 3x + 6 is shown. Which statements describe the graph? Select three options.The vertex is the maximum value.The axis of symmetry is x = .The domain is all real numbers. The range is all real numbers.The function is decreasing from (−∞, 6.75).

What is the y-value of the vertex of the function f(x)=−(x−3)(x+11)?

Consider the quadratic function f(x) = x2 – 8x – 4. What is the value of the leading coefficient?

On a coordinate plane, a parabola opens up. It goes through (negative 3.25, 5), has a vertex of (1.7, negative 2.75), and goes through (6.25, 5). Solid circles appear on the parabola at (negative 3, 4), (0, negative 2), (1.5, negative 2.75), (3, negative 2), (6, 4).

Consider the quadratic function f(x) = x2 – 5x + 12. Which statements are true about the function and its graph? Select three options.The value of f(–10) = 82The graph of the function is a parabola.The graph of the function opens down.The graph contains the point (20, –8).The graph contains the point (0, 0).

Which function has a vertex on the y-axis?

What is the y-value of the vertex of the function f(x)=−(x+8)(x−14)?