The set of ordered pairs represents a function. write a rule that represents the function.
(0,0), (1,7), (2,28), (3,63), (4,112)
y=

  y = 7x²

Step-by-step explanation:

One clue that the relation is quadratic is found in the second differences:

First differences are ...

Then second differences are ...

These are constant, indicating the function is 2nd-degree, or quadratic. The coefficient of the x² term is half the value of these second differences, so it will be 7.

When we compare y = 7x² with the given relation values, we find that no additional adjustment is needed in this rule.

A rule that represents the function is y = 7x².

Alternate solution

Another way you might approach this is to factor the y-values:

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

bull

step-by-step explanation: