Algebra 1 Review

Slope and Y-Intercept

100

What is the slope AND y-intercept of the following equation: 

y= 3x -4 

y= 3x-4 

Slope: 3

Y-intercept: -4 

200

What is the slope AND y-intercept of the following equation:

y= -2x +6

y= -2x +6 

Slope: 

Y-intercept: 6 

300

What is the slope and y -intercept of the equation: 

y= 1/2x +1

     

y= 1/2x +1

Slope: 1/2

Y-intercept: 1

400

What is the SLOPE and Y-INTERCEPT of the equation: 

y= x-3

y= x-3

Slope: 1 

Y-intercept: -3

500

What is the slope and y-intercept of: 

y= x

y= x 

Slope: 1

Y-intercept: 0 

Graphing

100

What is the first thing you want to plot when you're graphing an equation? 

First, plot the Y-INTERCEPT

200

How does the slope below tell you to "Move" 

y= -2/3x

y= -2/3x

2 down, 3 right 

OR 

2 up, 3 left

300

How does the slope below tell you to "move" 

y = 5x

y = 5x 

5 up, 1 right 

OR 

5 down, 1 left

400

What is the Y-INTERCEPT OF THE LINE (shown on zoom) 

The y-intercept is (0,1) 

500

What is the y-intercept AND the x-intercept of the graph shown

Y-intercept: (0,-4)

X-intercept: (2,0)

Positive and Negative Numbers

100

Multiply: 

-3(2) 

-3(2) = -6

200

Multiply: 

-7(-10)

-7(-10)

= +70 

300

-5 + -6

-5 + -6 = -11 

400

3-8

3-8= -5

500

-4+9

-4+9 = 

+5 

Substitution

100

y= 2x

If x=3, y=? 

y=2x

y=2(3)

y=6

200

y=x-9

If x=15 y=?

y=x-9

y= 15-9

y= 6

300

y = -2x +1

If x= 4, y= ? 

y = -2x +1 

y= -2(4) +1 

y= -8 +1

y= -7

400

What is the FIRST STEP to solving the problem below: 

y= 2x + 7  

x= 3y

*Hint, it starts with replace....

y= 2x + 7  

x= 3y

Replace X with 3y 

y= 2(3y) +7 

500

What is the first step to solving the problem below: 

3x+5y=9

y= 2x +1

3x+5y=9

y= 2x +1

1) Replace Y with 2X+1

Exponents

100

Find the value of: 

3²

3²= 3(3) =9

200

2³

2³

= 2(2)(2)

=8

300

5¹

5¹

= 5

400

4⁰

4⁰  = 1 

*any positive number to the power of 0 is 1

500

(-9)²

(-9)²

= (-9)(-9)

= +81