Aused bookstore sells paperback fiction books in excellent condition for $2.50 and in fair condition for $0.50 write an expression for the cost of buying x excellent-condition paperbacks and f fair-condition paperbacks

Step-by-step explanation:

Given that a used bookstore sells paperback fiction books in excellent condition for $2.50 and in fair condition for $0.50

Number of excellent condition paperbacks = x

Number of fair-condition paperbacks = f

To find total cost we multiply unit rate 2.50 by x and unit rate 0.50 by f and then add

Hence total cost for buying x excellent-condition paperbacks and f fair-condition paperbacks

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

ans789

step-by-step explanation: