Writing linear equations
Writing linear equations
Writing linear equations
Scatterplots
Word problems
100
Write a linear equation with a slope of 4 and a y-intercept of 5
y=4x+5
100
Slope is what letter
m
100
What is the formula for slope?
m=y2-y1/x2-x1
100
Determine the correlation in the scatterplot 
Negative correlation
100
You have a total of $30 to spend on snacks at the movies. You want popcorn, which is $10 a bag and soda is $5 a cup. Write an equation relating the amount of soda and popcorn you can buy.
10P+5S=30
200
Write the equation of a line with a slope of 3 that goes through the point (2, 5).
y=-3x-1
200
Find the slope of a line that goes through the points (4, 3) (-2, 9)
m=-1
200
Write the equation of a line with a slope of -4 that goes through the points (0, 10).
y=-4x+10
200
Identify the independent and dependent variables:
The amount of pizza eaten and the number of people at the party
I: The amount of people at the party
D: Amount of pizza eaten
200
Ms. Nik had $24 to spend on candy for the classroom. Her students requested sour patch, which are $4 a bag and Reece's, which are $6 a bag. Write an equation and solve for the intercepts.
4S+6R=24
S=6
R=4
300
Write the equation of a line from the graph
y=2x-4
300
Write the linear equation in slope-intercept form
-4x+y=7
y=4x+7
300
Write the linear equation in slope-intercept form -2y=4x+6
y=-2x-3
300
Identify the data sets as having positive, negative, or no correlation 
Negative correlation
300
Ms. Nik's students spend this week studying for their semester exams. On Monday, her students studied for 2 hours. On Wednesday, her students studied for 4 hours. Write an equation relating the amount of hours the students studied each day.
(1, 2) (3, 4)
y=1x+1 or y=x
400
Write the equation of a line from the graph
y=-1/2x+2
400
Write the equation of a line from a table
y=4x+3
400
Write the equation of a line that passes through the points (-1, -3) and (-3, -5)
y=1x-2
400
Based on the scatterplot, what would be the price of a 100 minute phone call?
A) $15 B) $10 C) $8 D)$20
B) $10
400
As the weeks went by, Ms. Nik was counting down the days until Christmas. 2 weeks ago, there was a 28 until Christmas. Today, there is only 14 days left until Christmas. Write a linear equations relating the Weeks to the Days left until Christmas.
(-2, 28) (0, 14)
y=-7x +14
500
Write the linear equation in slope-intercept form
-15x-5y=-20
y=-3x+4
500
Write the equation of a line from a table
y=1/2x+1
500
Write the equation of a line that goes through the points (2, 2) and (10, 6)
y=1/2x+1
500
The prediction equation is y=15x + 20
Use the equation to predict the hours a server worked to make $125 
7 hours worked
500
The line of best- fit equation is -3x+3y=15. Describe the correlation of the data as positive, negative, or no correlation. (hint: convert to slope-intercept form)
y=1x+5
Positive correlation