Question

Please help me on this graph I am still learning.

Answer 1

Given that the function S = 700 + 0.08c models the relation between weekly salary S and the sales c.

a)

We have to find the weekly salary when the sales are $0. Put c = 0 in the equation:

`\begin{gathered} S=700+0.08(0) \\ =700 \end{gathered}`

Thus, the answer is $700.

b)

We have to find the weekly salary when the sales are $18530. Put c = 18530 in the equation:

`\begin{gathered} S=700+0.08(18530) \\ =700+1482.4 \\ =2182.4 \end{gathered}`

Thus, the answer is $2182.4.

c)

The equation S = 700 + 0.08c means the y-intercept is 700 and the slope is 0.08. This means salary increases 0.08 for every $1 sale and when the sale is $0, the salary is $700.

Thus, the first option is correct.

d)

The third graph satisfies the function. Thus, the third graph is correct.