Question

9 Predict The cost of a school photo package includes $40 for the photo shoot, plus the a linear function? Predict the answer and then write and graph an equation on another sheet of paper to check your prediction. You can use $2.50 or any other value as the cost a class, then write per photo

Answer 1

The situation is defined by a linear function

The function is C(p) = 40 + 2.50p

where C(p) is the cost (y-value) and p represents the number of photos ordered

Here, we are trying to get a linear function out of the information given in the question.

Summarily, a school photo will cost $40, then a price of $2.50 per the number of photos ordered

Let the total cost of the shoot be C

Let the number of photos ordered be p

Now since it is $2.50 per photo, so the cost for p photos will be $2.50 * p = $2.50p

The total cost of the shoot including the cost for p photos will now be;

C = 40 + 2.5p

where the total cost is dependent on the number of photos ordered

The above equation is the linear function.

Hence, Yes , the situation is defined by a linear function

To graph the function, we use the cost C on the y-axis, while the number of photos p will be on the x-axis

To get different values of C, we need different values for p. So to graph the function, we need to select varying value of the number of photos P