Question

Laura rents a movie for a flat fee of $2.00 plus an additional $0.50 for each night she keeps the movie. Choose the cost function that represents this scenario if x equals the number of nights Laura has the movie

Answer 1

Welcome to OpenStudy! :)

rate = slope = m = 0.5
constant = 2
therefore when using the slope intercept form: y = mx + b
you would plug in m = 0.5 and b = 2 to get your equation :)

Answer 2

thank you :).
and will it be c(x) = 2.50x?

Answer 3

not quite, because numbers with variables attached to them cannot be added to numbers without variables attached to them
so c(x) = 0.5x + 2

Answer 4

c(x) = 2.00x + 0.50?

Answer 5

no it would just be c(x) = 0.5x + 2
because y = mx + b
then plug in m = 0.5 and b = 2 to get your equation

Answer 6

0.5 would be the one attached to the variable because it changes based on how many nights she keeps the movie
and 2 would not be with a variable because it would not be changing
if that helps...

Answer 7

but those are some of my options

Answer 8

hmm.... what are all your options then? :/

Answer 9

c(x) = 2.00x + 0.50

c(x) = 2.00 + 0.50x

c(x) = 2.50x

c(x) = (2.00 + 0.50)x

Answer 10

ah yes, okay, by commutative property of addition
c(x) = 0.5x + 2 can also equal c(x) = 2 + 0.5x

Answer 11

commutative property of addition is like when
2+1 = 1+2

Answer 12

so c?

Answer 13

c(x) = 0.5x + 2 can also equal c(x) = 2 + 0.5x
so c(x) = 2.00 + 0.50x

Answer 14

omg thanx jig can uu hep with another 1?

Answer 15

I kinda have to go to school now >,< sorry

Answer 16

aww man ok