Question

The cost of a loaf of bread increases by $0.50 for every $1 increase in the cost of 1 pound of flour. Which equation relates the cost of one loaf of bread to the cost of one pound of flour?

Answer 1

.5x=new price. X= dollars increased per loaf

Answer 2

`y=0.5x+C`

Explanation:

Given that the cost of a loaf of bread increases by $0.50 for every $1 increase in the cost of 1 pound of flour.

Let x be the cost of flour and y the cost of bread.

Rate of change of y with respect to x is constant as 0.50

This can be represented as

`(dy)/(dx) =0.5`

This can be solved as

y = 0.5x+C where C is the cost of bread even when x=0