Respuesta :
Answer:
a) Yes, f is continuous on [0, 2] and differentiable on (0, 2) since polynomials are continuous and differentiable on R
b) c=1
Step-by-step explanation:
a)The given function is;
[tex]f(x)=4x^2-3x+2[/tex]
For this function to satisfy the Mean Value Theorem, it must;
i) be continuous on [0,2]
ii)be differentiable on (0,2)
Since [tex]f(x)=4x^2-3x+2[/tex] is a polynomial function, it is continuous on [0,2] and differentiable on (0,2) because polynomial functions are continuous and differentiable on the entire real numbers.
b)
Since the above two hypotheses are satisfied,it implies that, there is a certain [tex]c\in (0,2)[/tex] such that; [tex]f'(c)=\frac{f(2)-f(0)}{2-0}[/tex]
[tex]f'(x)=8x-3[/tex]
[tex]8c-3=\frac{12-2}{2}[/tex]
[tex]8c-3=\frac{10}{2}[/tex]
[tex]8c-3=5[/tex]
[tex]8c=5+3[/tex]
[tex]8c=8[/tex]
[tex]c=1[/tex]
Therefore the number that satisfies the conclusion of the Mean Value Theorem is c=1.
We can see from the graph that at x=1, the secant line is parallel to the tangent on the interval [0,2]
