9a)
4x - 2 + 30 = 68
4x + 28 = 68
4x = 40
x = 10
9b)
y = 180 -68
y= 112
is the answer.
This is because the slop is found by the difference of ys over the difference of xs.
Answer:
2.25
Step-by-step explanation:
The value of point C is already positive, so nothing changes.
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The absolute value function changes negative numbers to positive ones (by multiplying by -1, or reflecting across the origin of the number line).