Question 385862
Problem: y=2.3x-4.5
I need to find how much y increases or decreases when x increases by 2. 
...
when x increases by 2 the equation becomes
y=2.3(x+2)-4.5
y=2.3x+(2.3*2)-4.5
y=2.3x+4.6-4.5
(y=2.3x-4.5) +4.6

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