Answer:the rate of change is 35, the Cost of 7hrs is 300, and I haven’t got the initial fee yet, sorry
Step-by-step explanation:
C I think because vertical lines is (VUX) which is Vertical, undefined slope, and x=
Answer: x²+8x+16
Step-by-step explanation:
(x+4)^2=(x+4)(x+4)
Now use distributive property to expand (x+4)(x+4):
(x+4)(x+4)=x²+4x+4x+4(4)
x²+4x+4x+4(4)=x²+8x+16