y = 80x - 60
Answer is B. y = 80x - 60
Double check:
When x = 1, y = 80(1) - 20 = 80 -60 = 20
When x = 2, y = 80(2) - 20 = 160 -60 = 100
When x = 3, y = 80(3) - 20 = 240 -60 = 180
When x = 4, y = 80(4) - 20 = 320 -60 = 260
When x = 5, y = 80(5) - 20 = 400 -60 = 340
Answer:
42
Step-by-step explanation:
For the square 6 x 5 = 30
For the triangle 6 x 4 x 1/2 = 12
or 6 x 4 ÷ 2 = 12
add them both 12 + 30 = 42
It would seem to be a good idea to cancel the (x + 3) factors to get f(x) = 1/(x - 4)
This is a hyperbolic graph with a vertical asymptote at x = 4.
However when x = -3 the factor (x + 3) = 0 so cannot be cancelled at this point. 0/0 is undefined.
The graph is drawn leaving a hole in the line at x = -3
The limits as we approach x = -3 from above or below that point get closer and closer to -1/7
The correct answer is A
To get an expression relating to x you need to have x alone on one side of your equation. ie x =
<span>Try this: </span>
<span>rx - st = r </span>
<span>remove st from the rx side </span>
<span>rx = r + st </span>
<span>now divide by r </span>
<span>x = (r + st)/r </span>
<span>You now have your expression relating to x</span>
