Question

Bottles of water sell for $1.50 each. Graph the relationship between the number of bottles of water sold and the total cost.

Answer 1

draw a graph with number of bottles on the x axis ( and number it 1 through 10 )

put price on the y axis and label it in increments of $1.50 ( 1.50, 3.00 , 4.50, 6.00, etc.

Then put dots on the intersection of price with the number of bottles and then draw a straight line through the dots.

for every 1 bottle of water sold the price increases by 1.50

so at x 1 y = 1.50

at x 2 y = 3.00

at x 3 y = 4.50

and so on