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jai6638
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URGENT Basic Calc Help needed
Q3) If a car depreciates continuously at a rate of 23.5%, when ( years ) will a 25,000 dollar car be worth $12,000 ?
A= pe^rt
(12,000)/(25000)= e^(.235t)
Ln ( 12,000/25000)=.235t
T= .0038
This answer does not seem right. Where am I going wrong?
Q2) Find the vertical and horizontal Asymptotes of f(x) = (3x) / ( 2x-4)
Vertical Asymptote = 2
Horizontal Asymptote= dunno.. I can't use limits here directly since the exponents of X are the same. If i tried dividing them so as to get a proper form, it doesn't seem to work out.
Q3)
Find the equation of the normal line at x=2 of the function f(x) = x^2-5x+4
X=2
Y=-2 ( plugged in 2 into the function )
Y=mx+b
-2=2m+b
How would I find the slope and B? Is the slope -1?
Q4) Find the average rate of change between 2 and -1 of
f(x) = x^2+ 3x
I found the derivative to be 2x+3 and plugged in 2 and -1 into the derivative to get -2 and 10.
10=11/2 +b = 9/2 = b
Is this the answer? y= -11/4x + 9/2
Q3) If a car depreciates continuously at a rate of 23.5%, when ( years ) will a 25,000 dollar car be worth $12,000 ?
A= pe^rt
(12,000)/(25000)= e^(.235t)
Ln ( 12,000/25000)=.235t
T= .0038
This answer does not seem right. Where am I going wrong?
Q2) Find the vertical and horizontal Asymptotes of f(x) = (3x) / ( 2x-4)
Vertical Asymptote = 2
Horizontal Asymptote= dunno.. I can't use limits here directly since the exponents of X are the same. If i tried dividing them so as to get a proper form, it doesn't seem to work out.
Q3)
Find the equation of the normal line at x=2 of the function f(x) = x^2-5x+4
X=2
Y=-2 ( plugged in 2 into the function )
Y=mx+b
-2=2m+b
How would I find the slope and B? Is the slope -1?
Q4) Find the average rate of change between 2 and -1 of
f(x) = x^2+ 3x
I found the derivative to be 2x+3 and plugged in 2 and -1 into the derivative to get -2 and 10.
10=11/2 +b = 9/2 = b
Is this the answer? y= -11/4x + 9/2
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