Review Math 8

1] Given the equation: 2x – 4y = 8

a] Find the slope

b] Find the y-intercept

c] Is the ordered pair ( 0, 2 ) a solution to the equation?

d] Find the number that can replace n so that the resulting ordered pair will be on the graph of the equation: ( –2, n )

e] Graph the line below.

2] For the following set of ordered pairs:

(-1, -3) , (0, -2) , (1, -1) , (2, 6)

a] What is the domain of the set?

b] What is the range of the set?

c] Is this set a function? How do you know?

d] Put the pairs in table form:

x
y

What is the equation for this cubic function?

3] What is the slope of the line which contains the points:

( –3, 2) and (–5, 4)

4] Simplify: 2 – 3

5] Graph the function: y = x2

6] Graph the function: y = 2x2 – 4

7] How are the graphs in #5 and #6 different?