ojoesther287
ojoesther287 ojoesther287
  • 21-07-2020
  • Mathematics
contestada

find the gradient of the curve y=x^2 + 5x-3 at the point x= 2.
please help.
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Respuesta :

jimrgrant1 jimrgrant1
  • 21-07-2020

Answer:

gradient = 9

Step-by-step explanation:

Note that [tex]\frac{dy}{dx}[/tex] is a measure of the gradient.

Differentiate y using the power rule

[tex]\frac{d}{dx}[/tex] (a[tex]x^{n}[/tex]) = na[tex]x^{n-1}[/tex]

Given

y = x² + 5x - 3, then

[tex]\frac{dy}{dx}[/tex] = 2x + 5

x = 2 : [tex]\frac{dy}{dx}[/tex] = 2(2) + 5 = 4 + 5 = 9 ← gradient

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