Question

Hero and Lisa are photographers they take pictures of seniors for high school yearbooks they charge a standard fee for taking the pictures there’s also a charge for each set of prints ordered so the number sets of prints determine the total cost S stand for the sets of prints ordered right the rule that describes the students total cost

Answer 1

Given:

We get the points (0,30), (1,31),(2,32), and (3,33) from the table.

Required:

We need to find the total cost.

Step-by-step explanation:

From the point(0,30).

There is an initial cost of $30 for print.

Let s be the number of sets of prints ordered.

Let k be the additional cost for each number of sets of print

The equation of the given model is

`Total\text{ cost =ks+30}`

Consider the point (1,31).

Substitute total cost =31 and s=1 in the equation.

`31\text{=k\lparen1\rparen+30}`
`31\text{=k+30}`

Subtract 30 from both sides.

`31-30\text{=k+30-30}`
`1\text{=k}`

Substitute k =1 in the equation.

`Total\text{ cost =s+30}`

Consider the point (2,32).

Substitute total cost =32 and s =2 in the equation.

`32\text{ =2+30}`

It is true, so the equation satisfies the values in the table,

Final answer:

`Total\text{ cost =s+30}`