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

a) What is a good scale to use for the y axis? -20 units.

(b) What is a good interval to use for the y axis?- 20 units

Step-by-step explanation:

A family is tracking its spending habits. Over the  

past year, the grocery bill has ranged from $120 to $180.

We need to plot these points on a coordinate grid.

If we plot the grocery bills along the y-axis, and past years will be plotted along the x-axis.

So, a) Good scale to use for the y-axis will be

1 scale = 20 units

As 120  and 180 are both divisible by 20.

So, it will be a good scale to use for the y-axis.

b) Good interval to use for the y-axis:

It will be again of 20 units.

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step-by-step explanation:

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