Slope-Intercept Form
Parallel or Perpendicular or Neither?
Parallel Lines
Perpendicular Lines
Scatter Plots
100
Write the equation for this line in slope-intercept form: Slope: 5 y-intercept: -7
What is y = 5x - 7?
100

 y = 4/5x - 8  and 4y = -5x + 12 

What are their slopes?

perpendicular

m = 4/5 m = -5/4

100
Write an equation of the lines that passes through the given point and is parallel to the given line. (-1, 3); y = 2x + 2
What is y = 2x + 5
100
Write the equation of a line perpendicular to y = -4x + 5, passing through point (0, 3).
What is y = 1/4 x + 3?
100
Does a scatter plot with points moving upwards from left to right have a correlation? If so, what?
What is a positive correlation?
200
Write the equation for the line in slope-intercept form, then standard form. Slope: 2/5 y-intercept: -2
What is y = 2/5 x - 2
200

y = -2x + 4 and y = -1/2x -2

What are their slopes?

Neither

m = -2 and m = -1/2

200
Write the equation of a parallel line to y = 3x - 5; that passes through (0, 6)
What is y = 3x + 6
200
Identify the slope of a line that is perpendicular to y = 5x - 8
What is -1/5?
200
Does a scatter plot with random points over several different quadrants have a correlation? If so, what?
What is no correlation?
300
Slope: 3; point (0, -5)
What is y = 3x - 5?
300

9x - 3y = 5 and y = 3x + 3

what are their slopes?

parallel

m = 3

300
Which lines are parallel, if any: y = 3x + 6 3x + y = 6 3y = 2x + 18
What is none?
300
Write the equation of a line that is perpendicular to: y = -5x + 3, and passes through point (2,0)
What is y = 1/5x - 2/5?
300
Does a scatter plot with the dependent variable decreasing while the independent variable is increasing have a correlation? If so, what?
What is a negative correlation?
400

Write the equation for the line (4, 5), (2,9)

What is y = -2x + 13?

400

y = -4 and x =7

perpendicular

m = 0 and m = undefined

400
Write an equation parallel to y = -5x + 3, passing through point (2,0)
What is y = -5x + 10?
400
Write an equation that is perpendicular to: y = 3/4x - 1/4 passing through (6,0)
What is y = -4/3x + 8?
400
If you identify an equation as y = 513x - 5258, what is the value of y if x = 20?
What is $5002?
500
Your science class is taking a field trip to an observatory. The cost of a presentation and a tour of the telescope is $60 for the group plus an additional $3 per person. Write an equation that gives the total cost C as a function of the number of people p in the group.
What is C = 3p + 60.
500

4x - 14y = 15 and -6x + 21y = 0

what are the slopes?

parallel

m = 2/7

500
Write an equation in standard form of a line parallel to y = 1/4 x + 2, passing through (4, -9)
What is -x + 4y = -40?
500
Accompanying slides, Slide 2

y = 3/2x + 7

500

Accompanying slides, Slide 1

y = -x + 1

(yours may be slightly different)

M
e
n
u