Question

Mary is saving money for college expenses. She saves the same amount each month. She saves the same amount each month. The table shows the amount of money Mary has saved after 4 and 7 months. Which statements about the this situation are true and support the relationship as being proportional? Select all that apply.

Answer 1

• A, C, D

Explanation:

See attached for answer options

As per the table, the points are:

• (4, 80) and (7, 140)

This is linear function and the formula is:

• y = mx + b
• m = (140-80)/(7-4) = 20
• 80 = 20*4 + b
• b = 0

So the function is

• y = 20x

The correct answer options attached