Solving Quadratics Quiz Review

What are the solutions to this quadratic?

• ±81

• ±9

• ±3

• No real solution

Find the values for n.

• -4, 2

• -2, 4

• -16

• -4

Find the zeros of this quadratic. (Solutions)

Hint: Set each factor equal to zero, then solve.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Determine the values of

a, b, and c for

the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

Solve the following for k.

9k² = 225

• 4

• 4, -4

• 25, -25

• -5, 5

Solve the quadratic equation
a² + 10a + 21 = 0

• ± √21
• -3 , -7
• 3 , 7
• 28 , -7

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1

What is this?

• This is the speed of light formula.
• This is the quadratic formula.
• This is the zero product property.
• This is scary.

Identify the 'c' value: y = 16x² -8x -24

• 16
• -8
• 24
• -24

Which of the following equations matches standard form of a quadratic?

• ax + by = c
• y = a(x - h)² + k
• y = ax² + bx + c
• y = mx + b