A movie theater is offering a special summer pass. Passholders pay $15 for the pass and only have to pay $2 per movie the see. The function Cgives the total cost, in dollars, for a passholder to watch n movies.
What would be the best way to describe the domain of C?
Oa
Ob
Oc
Od
multiples of 2
2-15
All positive integers
All real number six

9514 1404 393

  All positive integers

Step-by-step explanation:

The domain of the variable in the cost function is the set of values it might reasonably assume. Since we count movies using integers starting at 1, the reasonable domain is ...

  All positive integers

__

Additional comment

We know there is an upper limit. That limit is the number of movies offered such that the summer pass price is valid. We suspect it will be less than two or three hundred. For the purpose here, the reasonable choice is "positive integers."

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is

m∠a is 90°

m∠b is 40°