Hello, I'd like to know whether my answer is correct.
My final answer is -26+2h as h approaches 0 or simply -26 because -26+2(0) is -26.
\(2(-5)^{2}-6(-5)+5
=2(25)+30+5
=85\)
So my \(x_{1}\) is -5, while my \(y_{1}\) is 85.
For my \(x_{2}\) and \(y_{2}\):
\(x_{2}\)=5+h and
\(y_{2}\) is:
\(2(-5+h)^{2}-6(-5+h)+5
=2(25-10h+h^{2})+30-6h+5
=50-20h+2h^{2}+30-6h+5
=85-26h+2h^{2}\)
So I have (-5, 85) and (-5+h, 85-26h+2h^2).
\(\frac{(85-26h+2h^{2})-(85)}{(-5+h)-(-5)}
=\frac{-26h+2h^{2}}{h}
=\frac{h(-26+2h)}{h}\)
I cancel the h in the numerator and denominator and have the final result:
\(-26+2h\) as h approaches 0.
So safely, I can say that I have -26 as its derivative at point -5?
Thank you very much!
My final answer is -26+2h as h approaches 0 or simply -26 because -26+2(0) is -26.
\(2(-5)^{2}-6(-5)+5
=2(25)+30+5
=85\)
So my \(x_{1}\) is -5, while my \(y_{1}\) is 85.
For my \(x_{2}\) and \(y_{2}\):
\(x_{2}\)=5+h and
\(y_{2}\) is:
\(2(-5+h)^{2}-6(-5+h)+5
=2(25-10h+h^{2})+30-6h+5
=50-20h+2h^{2}+30-6h+5
=85-26h+2h^{2}\)
So I have (-5, 85) and (-5+h, 85-26h+2h^2).
\(\frac{(85-26h+2h^{2})-(85)}{(-5+h)-(-5)}
=\frac{-26h+2h^{2}}{h}
=\frac{h(-26+2h)}{h}\)
I cancel the h in the numerator and denominator and have the final result:
\(-26+2h\) as h approaches 0.
So safely, I can say that I have -26 as its derivative at point -5?
Thank you very much!
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