Question

A family 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.

Answer 1

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....