PLEASE HELP 2O POINTS What function is graphed below

y = x - 3
y = 3x
y = - 1
y = x + 3

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?

5cakes cost 3.50 how much do 7 cakes cost