Gabby is an aspiring country artist. Identify the slope of the equation.

Question

Gabby is an aspiring country artist. She has a record contract that pays her a base rate of $200 a month and an additional $12 for each album sold. Last month she earned a total of $644. Identify the slope of the equation.



Answer 1

For this word problem you need to identify key information. You are given the base rate, the addition fee per album sold and what she has earned. From this information you need to make an equation.

You will need the slope intercept form, y = mx + b

m is the slope

b is the y-intercept

So, from this problem the base rate is the y-intercept because it is fixed. The slope of the is the additional fee because it's changing by the number of albums sold. Below is the equation that should have been created using the slope intercept formula.

220 + 12x = 644

From the formula above, you see that your slope would be the $12.