Question2. Given the function $f(x)=2 x^{2}+3 x+1$, a. Find the instantaneous rate of change when $x=1$ using the secant method. [4 marks] b. Find the value of the derivative at $x=1$ using first principles. [4 marks]

Studdy Solution
Therefore, the value of the derivative at $x = 1$ using first principles is:
$$7$$
Solution: The instantaneous rate of change at $x = 1$ using the secant method is $7$. The value of the derivative at $x = 1$ using first principles is $7$.