2017­1­27 graph in slope int form .notebook
January 27, 2017
Today is Fri
1/27
Do Now:
-Take out HW
-Copy Tonight's HW
-Graphing in Slope Intercept Form W.S
-Midterm Friday 2/3
Warmup
1) Find the slope and the y-intercept.
y = 4x
y = -3x + 7
2) Describe the directions the following
slopes are giving:
3
m=
4
-2
m=
5
m=4
2017­1­27 graph in slope int form .notebook
5) m = ­1 b = (0, 4)
January 27, 2017
6) m = 1/3 b = (0, 3)
Today's Objective:
Graphing Linear Equations in Slope-Intercept Form
2017­1­27 graph in slope int form .notebook
January 27, 2017
To Graph Using Slope-Intercept Form
1)Make sure the equation is in Slope-Intercept Form
(y=mx + b).
m=
2) Identify the slope and y-intercept
b=
3) Plot the point that corresponds to the y- intercept.
4) Use slope to find other points.
5) Connect the line and label.
y = 2x - 3
m=
b=
2017­1­27 graph in slope int form .notebook
January 27, 2017
y = -3 x + 5
2
m=
b=
y = -x + 3
m =
b =
2017­1­27 graph in slope int form .notebook
January 27, 2017
y = 2x
m=
b=
1
y = x ­ 2 2
m = b = 2017­1­27 graph in slope int form .notebook
January 27, 2017
­3
y = x + 1 4
m = b = y=4
This means every ordered pair on the line
has a y-value of 4
2017­1­27 graph in slope int form .notebook
January 27, 2017
x = -3
This means every ordered pair on the line
has an x-value of -3
Graph the lines
x=0
y = -4
x=5
y=1
2017­1­27 graph in slope int form .notebook
January 27, 2017
What are the equations of the given lines?