Afamily is tracking its spending habits. over the past year, the grocery bill has ranged from $120 to $180. suppose you were going to plot these points on a coordinate grid. (a) what is a good scale to use for the y-axis? explain your reasoning. (b) what is a good interval to use for the y-axis? explain your reasoning.

Step-by-step explanation:

According to the given statement:

A family is tracking its spending habits. Over the past year, the grocery bill has ranged from $120 to $180

a) What is a good scale to use for the y-axis.

As the range is from $120 to $180 then 20 units will be a good scale to use because 120 and 180 both are divisible by 20

Thus 1 scale = 20 units

b)  What is a good interval to use for the y-axis

Again it will be of 20 units

answer: the answer is 40.82

step-by-step explanation: 3.14 x 13(or half of 26) to the power of 2