.87 is correct you can always check your work with an online calculator. :)
Answer:
it is number 3 (-1/5)
Step-by-step explanation:
Answer:
A= −3x+30
A=30 when x=0 which is the y−intercept.
(0,30) is a point on the graph
A=12 when x=6.
Find the slope using the two points
12-30/6-0= -18/6=-3
When functions are defined by more than one equation, they are called piecewise- defined functions.
Hope that helped
<em><u>Hope</u></em><em><u> </u></em><em><u>t</u></em><em><u>h</u></em><em><u>i</u></em><em><u>s</u></em><em><u> </u></em><em><u>will</u></em><em><u> </u></em><em><u>help</u></em><em><u> </u></em><em><u>u</u></em><em><u>.</u></em><em><u>.</u></em><em><u> </u></em>