Answer:
Step-by-step explanation:
A) Let x represent minutes used, and C represent monthly charge. We are given two (x, C) pairs: (370, 133.00) and (530, 181.00)
We can use these in the 2-point form of the equation for a line.
y = (y2 -y1)/(x2 -x1)(x -x1) +y1
C = (181 -133)/(530 -370)(x -370) +133
C = 48/160(x -370) +133
C = 0.30x -111 +133
C = 0.30x +22
__
B) For x = 477 minutes, the charge will be ...
C = 0.30(477) +22 = $165.10 . . . . for 477 minutes
Answer is d, you can see the graph touches the x line in the point 5 so the answer is (5,0)
Answer:
Step-by-step explanation:
ax = a
Divide both sides by a
x = a/a = 1.
Y=2x-2
I have done this in my head on the spot so I would test it on a graph .
