Slope
Define slope.
The steepness of a line
What is the equation for the point slope form of a line?
y-y1=m(x-x1)
When do you know lines are parallel?
When their slopes are equal
List all the ways you have heard slope. The team with the most ways will earn the points this round.
growth, rise over run, rate of change, change in y over change in x, delta y over delta x, y2-y1/x2-x1, unit rate
Write the equation of the line that has a slope of -2 and passing trough (1,-2)
y+2=-2(x-1)
Find x and y intercepts of x+4y=8.
(0,2) and (8,0)
How do you know 3 points are collinear?
The slope between each point is equal.
Sketch and label what a positive, negative, zero, and undefined slope look like.
Answers will vary
What point do you know is on this line:
y-4=3(x+1)
(-1,4)
Graph the equation with a slope of -2 and y-intercept -3.
Answers vary
Find the slope of the table?
What is -4/3?
Write the equation of the line that is parallel to y=-7x+2 and passing trough (3,-1).
y+1 = -7(x-3)
Convert 4x+2y=-4 into slope intercept form.
y=-2x-2
y= creates a ____________ line and has a slope that is ______________.
horizontal;0
What is the equation of a line passing through (-2,7) and (-3,-2)?
y-7=9(x+2)
OR
y+2=9(x+3)
Convert y+2=1/4(x-8) into slope intercept form.
y=(1/4)x-4
Convert y+2=1/2(x-6) into standard form.
-x+2y=-10
x= creates a ____________ line and has a slope that is ______________.
vertical;undefined