Asked by Jalen

Find y:
y= 3x
How would I find y in this problem?
Answered by Jalen
My directions say, " Find y for problems 1 and 2."
1. y= 3x
2. y=-2x+7
Answered by oobleck
This is calculus. You sure it doesn't say find y' ?
If it does, then you have
3 and -2 for the answers.
Answered by Jalen
Yes! It does say Find y'... what does the symbol above y mean lol. Also how did you get 3 and -2.
Answered by oobleck
y'(x) = dy/dx

Now read the power rule.
If y = x^n then
y' = n x^(n-1)

since 2x = 2*x^1, y' = 2*(1*x^0) = 2(1) = 2
and if y(x) is a constant, say, 3 = 3x^0, then y'=0
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