At the grocery store, mrs. knight bought 4 pounds of apples for $2 per pound and 2 heads of lettuce for $1 each. She had a coupon for $3 off the price of the apples. After her purchase, what was the change in the amount of money that mrs. knight had?

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.