Slope
Parallel and Perpendicular Lines
Slope Intercept Form
Standard Form
Surprise
100
Define slope.
rise/run, vertical change over horizontal change, rate of change
100
Fill in the blank. Parallel lines have the ________ slope. Perpendicular lines have ______________ _____________ slopes.
same slope and negative reciprocal
100
What is the equation for slope intercept form?
What is y=mx+b?
100
What is the equation for standard form?
What is Ax+By=C?
100
Is the y-axis horizontal or vertical?
vertical
200
What is the formula for slope?
y2 - y1 / x2 - x1
200
Write the equation of the line parallel to y=x-2 and passing trough (1,-2)
What is y=x-3?
200
Write the equation with a slope of 6 and y-intercept of -8.
What is y=6x-8?
200
Convert 3x+y=9 to slope intercept form.
y= -3x + 9
200
Define perpendicular lines.
lines that intersect at 90 degrees (right angles)
300
What is the slope of y= -3x + 3
-3
300
Are the following lines parallel y=-2/3x+4 and y=-2/3x-4?
yes
300
Write the equation of a line with slope -2 and y-intercept 0.
What is y=-2x?
300
Convert to slope intercept form -10x+5y=-15
y= 2x - 3
300
On graph paper...graph y=x-3
Start at (0,-3) with a positive slope
400
What are the four types of slopes?
positive, negative, zero, undefined
400
What is a parallel AND perpendicular slope to the following equation y= 5x + 7
Parallel = 5 Perpendicular = -1/5
400
What is the slope and y intercept of y=x
m=1 b=0
400
What form of a line is needed to write the equation of a line?
Point Slope form y-y=m(x-x)
400
On graph paper....Graph x+y= 2
y= -x+2 start at (0,2) with a negative slope
500
Find the slope between the two points A(2,4) and B(-1,-4).
8/3
500
Write the equation of the line perpendicular to y=2x-9 and passing through (-8,5).
y-5 = -1/2(x+8) y=-1/2x + 1
500
Describe how to graph in slope intercept form...
Make sure y is by itself Start with the y -intercept Then use slope to drive your line Label the line
500
Write the equation of a line that has a slope of 4 and passes through the point (5,9) in slope intercept form.
y-9= 4 (x-5) y=4x-11
500
Write an equation of a line that passes through the points (2,8)(-8,-2)
y=x+6
M
e
n
u