how do i solve this?can you please explain to me step by step: ~ an initial charge of $20 to create the silk screen ~17.00/shirt for orders of 50 or fewer shirts ~15.80/shirt or orders of more than 50 shirts (all i have is $17 , x 50, then i had no idea what to do with the 20) 1. write a piecewise function that gives the cost C for an order of x shirts 2.graph the function

Question

how do i solve this?can you please explain to me step by step:
~ an initial charge of $20 to create the silk screen
~17.00/shirt for orders of 50 or fewer shirts
~15.80/shirt or orders of more than 50 shirts
(all i have is $17 , x<= 50 and 15.50, x> 50, then i had no idea what to do with the 20)
1. write a piecewise function that gives the cost C for an order of x shirts
2.graph the function

anonymous · Answer

$$f(x)  = \left\{\begin{array}{rcc}
20+17x & \text{if}  & x \leq 50 \
20+15.8x& \text{if}  & x > 50
\end{array}
\right.$$

anonymous · Answer

how exactly did you get that?

anonymous · Answer

The fixed cost is $20 and the variable cost for the first 50 shirts is $17 time the number of shirts x.  That is the first equation for cost.

anonymous · Answer

what mandolino said

anonymous · Answer

OHOHOH thanks!

anonymous · Answer

After 50 shirts the variable cost changes to $15.80 time the number of shirts.

anonymous · Answer

fixed cost it like the y - intercept of the line.  even if you make no shirts you still have to pay $20

anonymous · Answer

ohhh,that's a big graph