Quadratics Practice Before Quick Check

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form
• Write down: a=1, b=6, c=-13
• Make it equal 0 by subtracting 3 on each side
• Type it all in a calculator.

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

What is "b" in the equation 3x² −7 = 0 ?

• 3

• 7

• 0

• 10

Which of the following is used to find the discriminant?

• aX²  + bX  +  c
• b - 4ac
• b² - 4ac
• b² + 4ac

What is the discriminate of f(x) = 3x² - 5x + 8

and how many solutions does the function have?

• discriminate = -71 and no real solutions

• discriminate = -121 and has no real solutions

• the discriminate = - 71 and has two real solutions

• the disctiminate = -121 and has two real solutions

• A
• B
• C
• D

• A

• B

• C

• D

• A
• B
• C
• D

Is the discriminant positive, negative, or zero?

• Positive
• Negative
• Zero
• Not sure