Quadratic Equations and their Related Functions Answers

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f(x) = 0.5(x + 3)(x − 1)

f(x) = 0.5(x − 3)(x + 1)

f(x) = 2(x + 3)(x − 1)

f(x) = 2 (x − 3)(x + 1)

Question text not available

y = 0.5(x + 2)2 + 4

y = 0.5(x + 3)2 – 0.5

y = 0.5(x – 3)2 – 0.5

y = 0.5(x – 2)2 + 4

Use the graphing calculator to graph the quadratic function y=2x2-6x-8.Which values are solutions of 0=2x2-6x-8? Select two options.–4–1014

–4

–1

The quadratic function f(x) = –x2 – 6x – 8 is graphed.

2 and –4

–2 and 4

–2 and –4

2 and 4

Use the graphing calculator to graph and find the zeros of the function y = 2x2 + 0.4x – 19.2. The zeros of the function are

–3.2 and –19.2.

–3.2 and 3.

–3 and 3.

–3 and –19.2.

Use the graph of the function y = (x + 3)(x − 2) to find the solutions of the quadratic equation 0 = (x + 3)(x − 2).

–6 and 0.

–4 and 3.

–3 and 2.

–2 and 1.

Use the graphing calculator to graph the quadratic function y = 2x2 + 2x – 40. What are the zeros of the function?

4 and –5

–4 and 5

–5 and –40

4 and –40

Which graph represents a quadratic function that has one real zero?

Option

Which quadratic function has one real solution?

0 = 2(x + 7)(x – 5)

0 = (x – 3)(x – 3)

0 = 2.4(x – 2)(x + 2)

0 = (x – 2)(x – 1)

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