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

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

Revolt · Accepted Answer

-1/3; 4

Question 3

Question 6

Revolt · Accepted Answer

4

Question 4

What are the zeros of the function f(x) = x2 + 8x + 4, expressed in simplest radical form?

Revolt · Accepted Answer

x = –4 ± 2

Question 5

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

Revolt · Accepted Answer

✔ 1; 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 6

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 7

✔ –1012

Revolt · Accepted Answer

✔ –1

Question 8

–10✔ 12

Revolt · Accepted Answer

✔ 1

Question 9

✔ –3–11 5

Revolt · Accepted Answer

✔ –3

Question 10

✔ 012

Revolt · Accepted Answer

✔ 0

Solving Quadratic Equations: Quadratic Formula Answers

More from this Course

TRY EDGENUITY HACKS