Writing y mx b and x y intercepts.notebook
January 26, 2017
Slope Intercept Form with x and y intercepts
To find the x and y intercept, all we do islook
at a graph!
The x-intercept is the point where the line
crosses the x axis. The point will always be
written as (#, 0)
The y-intercept is the point where the line
crosses the y axis. The point will always be
written as (0,#)
Slope:
x­intercept
y­intercept
y
Writing y mx b and x y intercepts.notebook
Slope:
x­intercept
y­intercept
Slope:
x­intercept
y­intercept
January 26, 2017
y
Writing y mx b and x y intercepts.notebook
Slope:
January 26, 2017
y
x­intercept
y­intercept
Slope Intercept form: y = mx + b is an easier way to graph!
(x,y) is a point on the line
m is the slope
b is the y­intercept (where the line touches the y­
axis)
y = 5x ­ 3 y = ­ 2x + 6
3
y = 1x ­ 4
2 5
m = m =
m = b = b =
b = Writing y mx b and x y intercepts.notebook
January 26, 2017
Find the slope and the y­intercept.
y = ­3x + 7
y = 1x y = ­10 + 2x
4 5
y + x = ­ 2 y = x
4x + y = ­3 x = ­5 y = 9 For each of the following, write the equation with the given slope and y­intercept.
m = 5, b = 9
m = ­4, b = ­7
slope is 1 and y intercept is 10
3 Writing y mx b and x y intercepts.notebook
January 26, 2017
y
Write an equation of this line.
.
.
.
x