Test Unit 1B

What is the rate of change (slope)?

How many squares are in figure 6?

How many circles are in step 0?

Fill in the chart.

Write the answers for A, B, then C with a comma and space between each answer.

Write an equation to represent the number

of cylinders (y) in a given step (x).

Write answer in the form y=mx+b.

Fill in the blank.

This graph shows __ correlation.

• positive

• negative

• no

Fill in the blank.

This graph shows __ correlation.

• positive

• negative

• no

Ari recorded the daily high temperature (in Celsius) and total sales from his ice cream shop for 12 days. He

plotted the data on the graph below and drew a line of best fit.

Based on the line of best fit that Ari drew, approximately how much money in sales should he expect when

the temperature is 21°C?

Remember to include $ and comma (if necessary).

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