Question

Susie started a rock collection.

She started with 26 rocks. Each month she adds 5 to the collection.

Which equation can be used to find y, the total number of rocks in Susie's collection after x months?

A. y = 26x - 5
B. y = 5x + 26
C. y = 26x + 5
D. y = 5x - 26

Answer 1

B) y= 5x + 26

Step-by-step explanation:

if susie starts with 26 rocks and adds 5 rocks each month and x=months then the correct option is Option B

Answer 2

Answer: y = 5x+26 (choice B)

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Step-by-step explanation:

The equation y = mx+b is in slope intercept form

m = slope

b = y intercept

The y intercept is the starting amount. In this case, she starts with b = 26 rocks. The m = 5 refers to the fact she adds 5 rocks per month. Each time x goes up by 1, y goes up by 5. Think of slope = rise/run = 5/1

rise = 5 = go up by 5 rocks

run = 1 = each time you go up by 1 month