7-5 Quadratic Formula
Assessment
•
Kendra Truett
•
Mathematics
•
9th Grade
•
2 plays
•
Hard
Student preview
8 questions
Show answers
1.
Multiple Choice
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
2.
Multiple Choice
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.
3.
Multiple Choice
16
-8
24
-24
4.
Multiple Choice
Solve Using the Quadratic Formula
2x2 + 7x - 15 = 0
x = -1.5, x = 5
No Solution
x = -5, x = 1.5
x = 0.7, x = 5
5.
Multiple Choice
Use the quadratic formula to find the solutions for
y = 3x3 + 8x - 1
x = 0.1167 and x = -2.7833
x = .7 and x = -16.7
x = .35 and x = -8.35
x = 0.2358 and x = -1.236
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