6. (a) Find, from first principle the deriva- tive of
x+1
with respect to
.
(b) The function f(r) is given by f(x) =
- 3r+ 4x + 1. Find:
(1) the derivative of fir);
the gradient of fr) at the point
A(2,5).
(WAEC)​

Find the given elements if matrix d:

M the table below represents a linear function f(x) and the equation represents a function g(x): x f(x)−1 −50 −11 3g(x)g(x) = 2x − 7part a: write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x). (6 points)part b: which function has a greater y-intercept? justify your answer. (4 points)

Which of the following parabolas opens down?