Which number is the slope or y-intercept?
Name the slope and y-intercept.
y = 2x + 10
m=2 b=10
y = -1/2x + 3
-1/2
/
increasing from left to right
Positive slope
Write an equation in slope-intercept form when slope = 3 and the y-intercept is 2
What is y = 3x + 2?
What is the letter used for slope?
m
Name the slope and y-intercept.
y = 3x + 21
m=3 b=21
y = 4 - 3x
-3
\
decreasing from left to right
negative slope
Write in slope-intercept form: slope = 1/4; y-intercept = -6
What is y = 1/4 x - 6?
Formula for slope
y-y/x-x
Name the slope and y-intercept.
y = 4x - 20
m=4 b= -20
(10, 7) (11, 4)
-3
_
horizontal line
zero slope
Identify the slope: y = -5/2 x - 3/4
What is -5/2?
What is b in y = mx + b ?
b = y-intercept
Name the slope and the y-intercept.
y = 8 - 4x
m= -4 b=8
(-3, 4) (-1, -4)
-4
|
vertical line
Undefined slope
Identify the y-intercept: y = - 2
What is -2?
Write a linear equation.
(0,8) (5,3)
y= -x +8
Name the slope and y-intercept.
y = 2 + 1/2x
m=1/2 b=2
y = 6
0
x = -7
Undefined
Write in slope-intercept form: slope = 2; (3, 5)
What is y = 2x -1?
Write a linear equation.
(6,-5) (2,3)
y = -2x + 7