Lisa's coffee shop makes a blend that is a mixture of two types of coffee type a coffee cost lisa $4.50 per pound and type b coffee cost $5.50 per pound. this month's blend uses three times as many pounds of type b coffee as type a, for a total cost of $634.50. how many pounds of type a coffee were used?

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.