Parallel/Perpendicular Lines
Using Intercepts
Slope
Slope intercept form
Point Slope form &Slopes of lines
100

Angle perpendicular lines intersect at.

What is a right angle?

100
What is the x-coordinate of the point where the graph intersects the x axis called?
What is the x intercept
100
What is the slope of a horizontal line?
Zero
100
What is slope intercept form?
y=mx+b
100
Write the linear equation in point slope form: Slope=-7 ; (4,2)
y-2 = -7(x -4)
200

Slope of a line parallel to y = 4x - 2.

What is 4

200
Find the x intercept: 2x- 4y=8
x=4
200
What is the slope of a vertical line?
Undefined
200
Write the equation in slope intercept form: slope=0, y intercept =-5
y=-5
200
What lines have the same slope?
parallel
300

Slope of a line perpendicular to y = (1/5)x -3

What is -5

300
Find the x and y intercepts of 3x+4y=24
x=8 and y=6
300
Find the slope of (4,-2) and(-1,2)
What is -4/5
300
Write the equation in slope intercept form: slope=4 and (2,5) is on the line
y=4x-3
300
How do you know when you have perpendicular slopes?
When the product of the slopes equal -1
400

Linear function that goes through (3, 4) and is parallel to y = (5/3)x

What is y = (5/3)x - 1

400
Find the x and y intercepts of 3x- 2y=12
x=4 and y=-6
400
Find the slope of (20,3000) and (60,2000)
What is -25
400

Graph the equation: y= 4x-3

See graph

400

Write this equation in point slope form & in slope intercept form: slope=-4, (-1,-2)

Point slope form: y+2= -4(x+1) Slope intercept: y=-4x -6

500

Linear function that goes through (5, 4) and is perpendicular to y = (-5/2)x + 3

What is y = (2/5)x + 2

500

Find the x and y intercepts of 2x + 4y=8. Then graph it

x=4 and y=2

500

Find the slope of the equation: 6x + 5y=30

What is -6/5

500

Write the equation in slope intercept form and graph: 3x+2y=8

y=-3/2x+4 See graph

500

Write the equation in point slope form and in slope intercept form: (1,-4) and (3,2)

Point slope: y-2=3 (x-3) slope intercept: y=3x -7

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