How much does one slice of pizza cost? Is the graph a proportional relationship?

What’s the equation for this graph?

Explanation:

(a)

take best two coordinates: (2,9),(3,13.5)

One slice of pizza costs $4.5

(b) Yes the graph shows proportional relationship as its a straight linear line

(c) using the formula: y = mx + b ....where m is slope and b is y-intercept.

Here the y-intercept is 0 and we found slope that is 4.5.

Therefore:

y = 4.5x + 0

y = 4.5x

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

4x and 6y

im not sure though