csat-suneung 2012 Q3

csat-suneung · South-Korea · csat__math-humanities 2 marks Differentiation from First Principles
For the function $f ( x ) = x ^ { 2 } + 5$, what is the value of $\lim _ { h \rightarrow 0 } \frac { f ( 1 + h ) - f ( 1 ) } { h }$? [2 points]
(1) 2
(2) 3
(3) 4
(4) 5
(5) 6
For the function $f ( x ) = x ^ { 2 } + 5$, what is the value of $\lim _ { h \rightarrow 0 } \frac { f ( 1 + h ) - f ( 1 ) } { h }$? [2 points]\\
(1) 2\\
(2) 3\\
(3) 4\\
(4) 5\\
(5) 6