Solving Quadratic Equations: Quadratic Formula

Question 1

Determine which functions have two real number zeros by calculating the discriminant, b2 – 4ac. Check all that apply.f(x) = x2 + 6x + 8g(x) = x2 + 4x + 8h(x) = x2 – 12x + 32k(x) = x2 + 4x – 1 p(x) = 5x2 + 5x + 4t(x) = x2 – 2x – 15

Revolt · Accepted Answer

f(x) = x2 + 6x + 8; h(x) = x2 – 12x + 32; k(x) = x2 + 4x – 1; t(x) = x2 – 2x – 15

Question 2

Haley substituted the values of a, b, and c into the quadratic formula below.

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7; -10; -2

Question 3

Question 84113

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-10

Question 4

Question 84114

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-2

Question 5

Where does f(x) = 3x2 – 11x – 4 intersect the x-axis?

Revolt · Accepted Answer

-1/3; 4

Question 6

Question 84119

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4

Question 7

Use the drop-down menus to complete the statements about the function p(x) = x(x – 1) + 1.

Revolt · Accepted Answer

The value of a is .: 1; The value of b is .: –1; The value of c is .: 1; The value of the discriminant is .: –3; The quadratic function will intersect the x-axis times.: 0

Question 8

✔ –1012

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✔ –1

Question 9

–10✔ 12

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✔ 1

Question 10

✔ –3–11 5

Revolt · Accepted Answer

✔ –3

Solving Quadratic Equations: Quadratic Formula Answers

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