The Quadratic Formula

Question 1

Choose the equation that represents the solutions of 0 = 0.25x2 - 8x.

Revolt · Accepted Answer

mc001-3.jpg

Question 2

0 = 5x2 - 2x + 6

Revolt · Accepted Answer

mc002-3.jpg

Question 3

4y - 7 = 5x2 - x + 2 + 3y real solution(s)

Revolt · Accepted Answer

no

Question 4

y = (-x + 4)2 real solution(s)

Revolt · Accepted Answer

one

Question 5

Which of the statements about the following quadratic equation is true? 6x2 - 8 = 4x2 + 7x

Revolt · Accepted Answer

The discriminant is greater than zero, so there are two real roots.

Question 6

3x = 0.5x2

Revolt · Accepted Answer

x = 0 or x = 6

Question 7

y = 12x2 - 9x + 4 real solution(s) 10x + y = -x2 + 2 real solution(s) 4y - 7 = 5x2 - x + 2 + 3y real solution(s) y = (-x + 4)2 real solution(s)

Revolt · Accepted Answer

no; Selection 1: no; Selection 2: two; Selection 3: no; Selection 4: one

Question 8

Complete the statements.Graph has one real root. Graph has a negative discriminant. Graph has an equation with coefficientsa = 1, b = 4, c = -2

Revolt · Accepted Answer

Selection 1: B; Selection 2: A; Selection 3: C

Question 9

Step 1: ax2 + bx + c = 0 Step 2: ax2 + bx = −c Step 3: Step 4: Step 5: Step 6: Step 7: Step 8:

Revolt · Accepted Answer

A; Selection 1: B; Selection 2: D; Selection 3: A; Selection 4: C

Question 10

10x + y = -x2 + 2 real solution(s)

Revolt · Accepted Answer

two

The Quadratic Formula Answers