1. Consider the function f(x)= -x^2 – 2x + 8. Select the interval of values for which f(x) is
positive and increasing.

the answer is c)8

step-by-step explanaction:

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c

∈3,600

step-by-step explanation: