1. slope & y-intercept & x- & y- intercepts
Graphing Lines
slope & y-intercept
&
x- & y- intercepts

2. Graphing Lines
slope and y-intercept

3. Run 3
y-intercept
b = -1
Rise 2
slope

4. Run 2
y-intercept
Rise
b = 3 -1
slope

5. Graphing Lines
x- and y- intercepts

6. 3x - 2y = 7 find the x value when y = 0 find the y value when x = 0
x-intercept
3x - 2(0) = 7
3x - 0 = 7
3x = 7
find the y value
when x = 0
y-intercept
3(0) - 2y = 7
0 - 2y = 7
-2y = 7

7. The equation 3x +2y = 120 models the number of passengers who can sit in a train car, where x is the number of adults and y is the number of children. Graph the equation.

8. 3x + 2y = 120 find the x value when y = 0 find the y value when x = 0
x-intercept
3x + 2(0) = 120
3x + 0 = 120
3x = 120
find the y value
when x = 0
y-intercept
3(0) + 2y = 120
0 + 2y = 120
2y = 120

9. What is the domain and range
of the function?
Domain:
Range:
What do the x & y intercepts represent
in relation to the problem?