Discriminant and Quadratic Formula

Presentation

•

Mathematics

•

10th Grade

•

Medium

•

CCSS

HSA-REI.B.4B, HSA.APR.A.1, HSA.REI.B.4

+12

Standards-aligned

Christy Bentley

Used 28+ times

FREE Resource

4 Slides • 13 Questions

Discriminant and the Quadratic Formula

Multiple Choice

1 The discriminant is

aX² + bX + c

b - 4ac

b² - 4ac

b² + 4ac

Multiple Choice

1 What does the discriminant tell us?

The maximum or minimum

The y-intercept

The number and type of solutions

The axis of symmetry

Multiple Choice

2 For the function below, is the discriminant positive, negative, or zero?

y = x² + 4x + 4

Positive

Negative

Zero

Multiple Choice

3 For the function above, is the discriminant positive, negative, or zero?

Positive

Negative

Zero

Multiple Choice

3 For the function above, is the discriminant positive, negative, or zero?

Positive

Negative

Zero

Multiple Choice

Determine the value of the discriminant and describe the number and type roots for the following:

x² + 7x + 13

101, 2 real roots

3, 2 real roots

-101, 2 imaginary roots

-3, 2 imaginary roots

Multiple Choice

A function has a discriminant of 25.
______________
How many solutions does it have?

Fill in the Blanks

$y\ =\ 3x^2+5x\ -2\$ In this quadratic, the a value is

Fill in the Blanks

$y\ =\ 3x^2+5x\ -2\$ In this quadratic, the b value is

Fill in the Blanks

$y\ =\ 3x^2+5x\ -2\$ In this quadratic, the c value is

Type answer...

Multiple Choice

Identify a, b and c in the quadratic equation: $2x^2-3x-5=0$

a = 2 , b = 3, c = -5

a = 2, b = -3, c = 5

a = 2, b = -3, c = -5

a = -2, b = 3, c = 5

Multiple Choice

What are the zeros of

$f\left(x\right)=x^2+7x-18$ ?

$x=-2,\ -9$

$x=2,\ -9$

$x=-2,\ 9$

$x=2,\ 9$

Multiple Choice

Solve using the quadratic formula :

x² - 7x + 12 = 0

x = 3, -4

x = -3, 4

x = 3, 4

x = -3, -4

Discriminant and the Quadratic Formula

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