Slopes and Intercepts
Slope Formula
Review Negatives
Finding Slope
Bonus Slope Review
100
What is the y-intercept of this graph?
1
100
What is the equation of a line in slope-intercept form?
y=mx + b
100
-5 + 11 =
6
100
Find the slope when given (3,1) (4,2)
1
100
The y-intercept represents where a graphed line crosses the _____
y-axis
200
y = 10x - 13
What is the y-intercept for this function equation?
-13
200
What does b represent in the equation of a line, y=mx + b
y-intercept
200
-6 + -7 =
-13
200
Find the slope when given (7,3) (8, 10)
7
200
A line has two points at (6, 0) & (6, -5).
Is the slope positive, negative, zero, or undefined? How do you know?
Undefined - change in y over change in x shows a 0 in the denominator, meaning it is a vertical line.
300
What is the slope of this line?
y = -x - 3
y = -x - 3
slope = -1
300
In the equation of a line, y=mx + b, what is the formula for finding m ?
y2 - y1 Rise
--------- OR -----------
x2 - x1 Run
300
3 - 12 =
-9
300
Find the slope when given (3,1) (1,7)
-3
300
In the equation y= -5x - 9, what is the slope? What is the y-intercept?
slope: -5
y-intercept: -9
400
What is the slope of this line?
slope = 2
400
In the equation of a line, y=mx + b, what does m represent?
slope
400
-5 x -8 =
40
400
Find the slope when given (2,5) (3,2)
-3
400
What is the slope for this table:
_x_|_y_
0 | -4
3 | -7
6 | -10
9 | -13
-1
500
Two points are plotted at (5,1) and (6,6). What is the slope?
5
500
Look at this table:
x_|_y
0 | 8
1 | 6
2 | 4
Is the slope negative, positive, zero, or undefined? How do you know?
Negative. m = -2
500
2- (-7) =
9
500
Find the slope when given (2,5) (1,2)
3
500
Simplify the slope: -18/-9
2