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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

Hero And Lisa Are Photographers They Take Pictures Of Seniors For High School Yearbooks They Charge A Standard Fee For Taking The Pictures Theres Also A Charge class=

Sagot :

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.

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

[tex]Total\text{ cost =ks+30}[/tex]

Consider the point (1,31).

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

[tex]31\text{=k\lparen1\rparen+30}[/tex][tex]31\text{=k+30}[/tex]

Subtract 30 from both sides.

[tex]31-30\text{=k+30-30}[/tex][tex]1\text{=k}[/tex]

Substitute k =1 in the equation.

[tex]Total\text{ cost =s+30}[/tex]

Consider the point (2,32).

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

[tex]32\text{ =2+30}[/tex]

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

Final answer:

[tex]Total\text{ cost =s+30}[/tex]

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