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January 28, 2015

January 28, 2015

Posted by **Matt** on Thursday, April 21, 2011 at 9:23pm.

So confused

- calculus -
**bobpursley**, Thursday, April 21, 2011 at 9:45pmy=mx+b f'(3)=5 means m=5

y=5x+b but f(3)=2 means

2=5*3+b, or b= -13

tangent line y= 5x-13

so the zero is 0=5x-13 x=13/5

- calculus -
**Mgraph**, Thursday, April 21, 2011 at 9:51pmThat approximation is the intersection of

the tangent and X-axis.

The equation of the tangent:

y-2=5(x-3)

If y=0 then x=13/5

- calculus -
**bobpursley**, Thursday, April 21, 2011 at 9:53pmnice work, Mgraph.

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