Juan paid $18 for the six horror movies he rented in October. What is the unit rate of the situation?
Unit rate =
Write the equation.
Make a table of x and y values for the number
of movies Juan rented and the total cost.
y =

UNit rate is 3 equation:y=3x

Step-by-step explanation:

Unit Rate

$3 per movie

Equation

let x = # of movies, y = total cost ($)

y = 3x

Table

x      y

1       3

2      6

3      9

4      12

5      15

6      18

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2