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Slope
Equations
Linear Equations
Tables
Mixed Review
100
What is the definition of slope?
What is how steep a line is on a graph.
100
What is the form of a linear equation?
What is y=mx+b
100
What represents the slope in y = mx + b
What is m
100

What does it mean if a table is linear?

The y-axis is increasing or decreasing by a constant amount.

100

The formula for inverse variation 

y = k/ x

200
What is the slope of (1,2) and (2,5)?
What is 3.
200
Solve the following equation: 2x + 3 + 13
What is x = 5
200
What does it mean for an equation to be linear?
The equation is changing by a constant amount and the graph is represented by a straight line. What does it mean for an equation to be linear?
200

Is the table linear? Why or why not? 

x  1 2 3 4 5 6 7 8

y -1 4 0 6 2 8 3 10

No because it is not increasing by a constant amount

200

Describe the shape of a graph that represents an inverse variation relationship. Be sure to include whether or not it touches the origin. 

The graph is rounded and shows as one quantity increases, another decreases. It does not touch the x or y axis.

300
What does the slope look like if it is 0?
What is a horizontal line.
300
Solve for x: 3(x + -9) = -15
what is x = 4
300
Is the following equation linear? Why or why not. y = 3x
Yes because the slope is 3 and the y-intercept is 0.
300

Find the slope of the table: 

x 2  4  6   8   10

y 0  6 12  18  24

Slope is 3

300

Write an equation to represent the table below:

x  12    10    6    4   2  

y   1    1.2    2    3   6  

y = 12/ x

400
What direction is the graph going when the slope is negative?
What is decreasing.
400
Solve for x: 5 (x + 6) = 56
What is x = 26/5 or 5 1/5
400
What is the slope and y-intercept of the equation y = -2x -5
Slope: -2 Y-intercept: -5
400

Write an equation from the table 

x 0  1  2   3   4

y 1  5  9  13  17

y = 4x + 1

400

Ten 7th graders said that ELA was their favorite subject out of 20 who were surveyed.

Ten 8th graders said that ELA was their favorite subject out of 100 who were surveyed. 

Are 7th and 8th graders equally likely to chose ELA as their favorite subject? Tell why or why not.

No, 10/20 = 50% of 7th graders who like ELA, while 10/100= 10% of 8th graders who like ELA.

500
What is the slope of the points (2, 3) and (-2, 11)?
What is -2
500
Create an equation for the following story: Jack is trying to save money for an IPad. He has $150.00 in the bank and saves $25.00 per month. Let m be the number of months Jack is going to save and let t be the total amount of money he has.
What is t=25m + 150
500
How does the slope and y-intercept relate to a problem?
The slope is how the problem is changing and the y-intercept is the initial amount.
500

What is the y-intercept of the table: 

x  1   2   3    4    5

y  2   5   8   11  14

y-intercept is -1

500

This measure describes the strength of a linear relationship between two variables using a decimal number between -1 and 1. 

Correlation Coefficient