SOLUTION: I have two questions on two math problems. 1. f(x)=x+5 2. f(4)=8x+2 If you could help me solve these that would really help me out. Thank you.

Algebra ->  Functions -> SOLUTION: I have two questions on two math problems. 1. f(x)=x+5 2. f(4)=8x+2 If you could help me solve these that would really help me out. Thank you.      Log On


   



Question 391726: I have two questions on two math problems.
1. f(x)=x+5
2. f(4)=8x+2
If you could help me solve these that would really help me out. Thank you.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
I have two questions on two math problems.
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You cannot "solve" them; You can graph them.
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1. f(x)=x+5
Let x = 0, Then y = 5 giving you point (0,5)
Let x = 2, then y = 7 giving you point (2,7)
Plot those points and draw a line thru them to get:
graph%28400%2C300%2C-10%2C10%2C-10%2C10%2Cx%2B5%29
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2. f(4)=8x+2
Let x = 0, then y = 2 giving you point (0,2)
Let x = 2, then y = 18 giving you point (2,18)
Plot the points and draw a line thru them to get:
graph%28400%2C300%2C-10%2C20%2C-10%2C50%2C8x%2B2%29
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Cheers,
Stan H.
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