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Quadratic formula

Quadratic formula

Assessment

Presentation

Mathematics

11th Grade

Medium

CCSS
HSA-REI.B.4B, HSA.CED.A.1, HSA-SSE.B.3B

+2

Standards-aligned

Created by

Leigh Moore

Used 9+ times

FREE Resource

12 Slides • 7 Questions

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Multiple Choice

Determine the values of a, b, and c for the quadratic equation:

4x2 – 8x = 3

1

a = 4, b = -8, c = 3

2

a = 4, b =-8, c =-3

3

a = 4, b = 8, c = 3

4

a = 4, b = 8, c = -3

8

Multiple Choice

What should you do first in solving this equation?
x2 + 6x - 13 = 3
1
Get factored form
2
Write down: a=1, b=6, c=-13
3
Make it equal 0 by subtracting 3 on each side
4
Type it all in a calculator.

9

Multiple Choice

Use the quadratic formula to find the solutions for

y = -x2 - 5x + 12

1

No Real Solution

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3
4

10

Multiple Choice

The discriminant is
1
aX2  + bX  +  c
2
b - 4ac
3
b2 - 4ac
4
b2 + 4ac

11

Multiple Choice

A function has a discriminant of 25.
______________
How many solutions does it have?
1
0
2
1
3
2
4
5

12

Multiple Choice

Determine the value of the discriminant and name the nature of the roots for the following:
x2 + 7x + 13
Remember:  b2 - 4ac
1
400, 2 real root 
2
0, 1 real root with a multiplicity of 2
3
-400, 2 imaginary roots
4

-3, 0 real roots

13

Multiple Choice

Question image
____________
For the function above, is the discriminant positive, negative, or zero?
1
Positive
2
Negative
3
Zero
4
Not Sure

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