
Quadratic Formula Intro
Presentation
•
Mathematics
•
9th Grade
•
Medium
Standards-aligned
RACHAL STEWARD
Used 4+ times
FREE Resource
4 Slides • 11 Questions
1
Quadratic Formula Intro
By RACHAL STEWARD
2
3
4
1st: Make sure equation is set equal to 0.
We call this standard form.
2nd: Identify a, b, and c.
3rd: Substitute a, b, and c into the Quadratic Formula and simplify!
To Use the Quadratic Formula
5
Multiple Choice
Identify a, b, and c in:
x2−6x+14
a=3
b=5
c=9
a=1
b=-6
c=14
a=1
b=-6
c=-14
a=1
b=6
c=14
6
Multiple Choice
Identify the values of a, b, and c
10p2 + 7p - 20 = 0
a=1
b=7 c=-20
a=10
b=7
c=20
a=10 b=-7 c=-20
a=10
b=7 c=-20
7
Multiple Choice
Determine the values of a, b, and c for the quadratic equation:
4x2 – 8x = 3
*remember right side should =0
a = 4
b = -8
c = 3
a = 4
b =-8
c =-3
a = 4
b = 8
c = 3
a = 4
b = 8
c = -3
8
Multiple Choice
Put the following equation into standard form:
5x2 + x - 18 = - 9x + 3x2
2x2 - 8x -18 = 0
-2x2 +10x -18 = 0
2x2 +10x -18 = 0
9
Multiple Choice
Identify the values of a, b, and c
5x2 + x - 18 = - 9x + 3x2
a=2
b=10 c=-18
a=5
b=1
c=-18
a=8
b=-8 c=-18
a=2
b=9
c=-18
10
Multiple Choice
Identify the 'b' value: y = 16x2 -8x -24
16
-8
8
-24
24
11
Multiple Choice
Identify the 'a' value: y = 16x2 -8x -24
16
8
-8
-24
12
Multiple Choice
Identify the 'c' value: y = 16x2 -8x -24
16
8
-8
-24
24
13
Multiple Choice
Determine the values of a, b, and c for the quadratic equation:
4x2 – 5x = -7x - 3
a = 4
b = -13
c = -3
a = 4
b =-2
c =-3
a = 4
b = 13
c = 3
a = 4
b = 2
c = 3
14
Multiple Choice
What is this formula?
This is the standard formula of quadratics.
This is the quadratic formula.
This is the square root formula.
This is the Pythagorean Theorem formula.
15
Multiple Choice
What should you do first in solving this equation by quadratic formula?
x2 + 6x - 13 = 3
Factor
Write down:
a = 1, b = 6
, c = -13
Subtract 3 from both sides.
Add 3 to both sides.
Quadratic Formula Intro
By RACHAL STEWARD
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