Let
f(x)=12−x. Compute
f′(8) using the limit definition
f′(8) =
Find an equation of the tangent line at
x=8
y =
[more..]
Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Be sure your variables match those in the question