Download Math 8 - PRACTICE 3.4 Graph Using Slope

Math 8 - PRACTICE 3.4 Graph Using Slope-Intercept Form
Name: __________________________
Identify the slope and y-intercept. Then graph the line.
1.
y = 2x – 4
2.
y= x+1
m = ____ b = _____
m = ____
4.
5.
y=x–1
m = ____
7.
b = _____
y = – 3x – 2
m = ____ b = _____
y = –2x + 3
m = ____
8.
b = _____
b = _____
y=– x +1
m = ____
b = _____
10. How can you find the slope and the y-intercept of the graph of x + y = 8?
3.
y = 3x
m = ____
6.
y= x+3
m = ____
9.
b = _____
b = _____
y= x+3
m = ____
b = _____
Graph y = mx + b
11.
y = –x – 1
12. y = x – 2
13.
y=4
14.
y = 2x
15.
y=–
x+2
16.
y=– x
17.
x = –2
18.
y=–
x+1
19.
y=
x
Ace Car Rentals charges $20 per day plus a one-time $10 service charge to rent one of its compact cars.
The independent variable x represents __________________________
The dependent variable y represents ___________________________
The total cost can be represented by the equation:
20. Graph the equation.
21. What do the slope and y-intercept represent?
Slope represents ________________________________
y-interecept represents ___________________________