Download Graphing with slope intercept

Reteach
Graphing
Example 1
Graph the slope given the y-intercept.
3
m
4
3
4
y  int  (0, 2)
3
4
Example 2
Graph the slope given the y-intercept.
3
m 
4
y  int  (0, 2)
3
43
4
Steps…
1. Is it in slope intercept form?
– If not, then make it that way ( y=mx+b )
2. Identify the y-intercept (b)
3. Identify the slope (m)
4. Graph the y-intercept
– Always on the y-axis
5. Use the slope to find the next point
rise
m=
run
Example 3
Graph the equation.
3
y  x2
4
3
m
4
b  (0 , 2)
Example 4
Graph the equation.
-2x + 5y = 10
m= 2
5
b =(0, 2)
Example 5
Graph the equation.
2
y  4  ( x  2)
5
2
m
5
point  ( 2 , 4 )
2
5
Example 6
Graph the equation.
y 10  2  x  1
2
m  2  
1
point  (1,10)
2
1
Graph.
Ex 7 x > 12
0
5
10
15
20
Ex 8 x < 9
0
5
10
15
20
Ex 9 y ≤ 3x – 4
Solid or dashed?
Above or below?
3
m 3
1
b  (0 ,4 )
Ex 10 – 4x + 2y > 6 Solid or dashed?
Above or below?
2
m 2
1
b  (0 , 3 )
Ex 11 Solve the system of equations.
y = -x + 8
y = 4x - 7
Homework
RT WS Graphing
Steps…
1. Is it in slope intercept form?
– If not, then make it that way ( y=mx+b )
2. Identify the y-intercept (b)
3. Identify the slope (m)
4. Graph the y-intercept
– Always on the y-axis
5. Use the slope to find the next point
rise
m=
run