7% of $45:
= 0.07 * 45
= 3.15
Increase = $3.15
Divide the percentage by 100. EXAMPLE: 50% = 0.5
The relation is <em>not a function</em> if any x-value is repeated.
Assuming you have
(x, y) = (3, 10), (__, 20)
if x = 3, the relation is not a function.
Joe is correct because Moe could choose two pieces but had a nine piece variety where as Joe could only choose from 7 pieces of candy
