Linear Equations - y=mx+b

Presentation

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Mathematics

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7th - 9th Grade

•

Practice Problem

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Medium

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CCSS

8.EE.B.5, 8.EE.B.6, 8.F.A.3

Standards-aligned

Krista Shurer

Used 18+ times

FREE Resource

16 Slides • 18 Questions

Linear Equations - y=mx+b

Multiple Choice

Given the equation:

y=2x+7

What is the slope?

m = 2

m = 7

m = 9

m = 5

Multiple Choice

Given the equation:

y=2x+7

What is the y-intercept?

b = 2

b = 7

b = 9

b = 5

Multiple Choice

Given the equation, what is the y-intercept?

y=\frac{2}{3}x+3

$b=\frac{2}{3}$

$b=\frac{3}{2}$

$b=3$

$b=3\frac{2}{3}$

Multiple Choice

Given the equation, what is the slope?

y=\frac{2}{3}x+3

$m=\frac{2}{3}$

$m=\frac{3}{2}$

$m=3$

$m=3\frac{2}{3}$

Multiple Choice

Given the equation, what is the slope?

y=x+2

$m=1$

$m=2$

$m=3$

$m=0$

Multiple Choice

Given the equation, what is the y-intercept?

y=\frac{3}{4}x-1

$b=-1$

$b=1$

$b=\frac{3}{4}$

$b=0$

Multiple Choice

Given the equation, what is the slope?

y=-\frac{1}{2}x-5

$m=-\frac{1}{2}$

$m=\frac{1}{2}$

$m=-5$

$m=-5\frac{1}{2}$

Multiple Choice

Given the equation, what is the y-intercept?

y=x-5

$b=-5$

$b=5$

$b=1$

$b=0$

Fill in the Blanks

Type answer...

What value can you ADD to anything and still get the same answer?

For example: -8 + ? = -8
ZERO!
-8 + 0 = -8
Therefore..... y=4x is the same as (or equal to) y=4x+0

Multiple Choice

Given the equation, what is the y-intercept?

y=2x

$b=0$

$b=2$

cannot be determined

What value can you ADD to anything and still get the same answer?

ZERO!
Therefore..... y=2x is the same as (or equal to) y=2x+0
+0 in the back is your y-intercept!
That means the equation, y=2x will cross the y-axis at zero, going through the origin!

Multiple Choice

Given the equation, what is the y-intercept?

y=-\frac{3}{5}x

$b=0$

$b=-\frac{3}{5}$

cannot be determined

Now let's go backwards!

Let's say you are given the slope and y-intercept, could you come up with an equation?!
For example:
Slope = 4
Y-intercept = 2

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = 2 (m)

Y-intercept = 4 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=2x+4

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = 5 (m)

Y-intercept = 1 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=5x+1

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = 1/2 (m)

Y-intercept = 3 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=1/2x+3

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = -2 (m)

Y-intercept = 4 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=-2x+4

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = -4 (m)

Y-intercept = -1 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=-4x+(-1) OR y=-4x-1

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = 1 (m)

Y-intercept = 3 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=1x+3 OR y=x+3

Fill in the Blanks

Type answer...

Let's talk about the answer:

Write an equation given the following information:

Slope = 2/3 (m)

Y-intercept = 0 (b)

**do not type any spaces in your equation! Remember: y=mx+b

y=2/3x+0 OR y=2/3x

Linear Equations - y=mx+b

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