Answer:
D.
Step-by-step explanation:
All other equations have x or y to the power of one so they are linear. D. has x or y to the power of two, so it's not linear. Quadratics and any variable to the power of 2 and above is not linear (numbers on their own are also always linear, so ignore any powers on them)
Answer:
<em>f(g(x)) = </em>
<em> ; g(f(x)) = 7x - 30</em>
Step-by-step explanation:
https://answers.yahoo.com/question/index?qid=20180411132938AApZYZz
Answer:
a)
28000 + 3000·x = 36000 + 2000·x --> x = 8 years
b)
28000 + 3000·8 = $52000