Which equation could represent "the total cost of popcorn at the movie that sells for $2.50 each if p packages of popcorn are purchased"?
c(p) = 2.50p
c(p) = 2.50 + p
c(2.50) = p

Step-by-step explanation:

Let

p------> the number of packages of popcorn

C-----> the total cost of popcorn at the movie

we know that

------> linear equation that represent the situation

The equation represent a direct variation

The slope m is equal to the constant of proportionality k

so

what's that

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)