finding solutions to quadratics

True or false:
The solution, root, x-intercept, and zero of a problem are all the same thing.

• True
• False, because the solution and root are the same but the x-intercept and zero are different
• False, because the x-intercept and root are the same but the zero and solution are different
• False, they are all different

Find the zeros.

• 0 and 4
• 0 and -4
• 0
• -4

Tags

CCSS.HSF-IF.C.7A

What is the greatest number of solutions that a Quadratic Equation can have?

• 0
• 1
• 2
• 3

Tags

CCSS.HSA-REI.B.4B

What are the solutions?

• -2, 1
• 1, 2
• -1,2
• 0,-4

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.

Tags

CCSS.HSA-REI.B.4B

Identify the a, b and c values for this equation:
3x² - 8x + 15 = 0

• a=3, b=8, c=0
• a=3, b=-8, c=15
• a=3, b=8, c=15

The solutions of the quadratic equation 
x²+2x-15=0 are

• x = 3 or x = 5
• x = 5 or x = -3
• x = -5 or x = 3
• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation 
x²+12x+35=0 are

• x = -5 or x = -7
• x = 5 or x = 7
• x = -35 or x = -1
• x = -9 or x = -4

Tags

CCSS.HSA-REI.B.4B

x² + 4 = 68

• ± 8
• ± √8
• 8
• ± 64

Tags

CCSS.8.EE.A.2

k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.8.EE.A.2