If the slope of the tangent to f(x)= a(x-1) + bx at the point (2, determine the values of the constants a and b. #9. ftx)=D 2a[xー)+b %3D [6] f(2) = a +2b= -12 0 f(2) 3D22 +b= -9 © a10 -[ da +4b =-24 e -3b = 15 %3D b=-5 Sub into O a-10 =-12 12+10

Calculus: Early Transcendentals
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Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
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This is from the test solutions from a test a while back that’s why it’s already answered. Can someone explain how my teacher got the line I’m pointing at?
If the slope of the tangent to f(x) = a(x-1)² + bx at the point (2,-12) is-9,
determine the values of the constants a and b.
#9.
f(x)= 2alx-1)+b
[6]
sf(2)= a +26=-12 0
f(2) = 2a +b = -9 ©
%3D
an0 -[ da +4b = -24 a
-3b = 15
b=-5
Sub into o
al-
Transcribed Image Text:If the slope of the tangent to f(x) = a(x-1)² + bx at the point (2,-12) is-9, determine the values of the constants a and b. #9. f(x)= 2alx-1)+b [6] sf(2)= a +26=-12 0 f(2) = 2a +b = -9 © %3D an0 -[ da +4b = -24 a -3b = 15 b=-5 Sub into o al-
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