The following statements concerning the location of an extreme value of a twice-differentiable function, f, are all true. which statement also includes the correct justification? (a) the function has a maximum at x=5 because f'(5)=0. (b) the function has a maximum at x=5 because f'(x)< 0 for x< 5 and f'(x)> 0 for x> 5. (c) the function has a minimum at x=3 because the tangent line at x=3 is horizontal. (d) the function has a minimum at x=3 because f'(x)< 0 for x< 3 and f'(x)> 0 for x> 3. (e) the function has a minimum at x=3 because f"(3)< 0.

answer: 180

step-by-step explanation:

12-2=10

20-2=18

10x18=180

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)