The answer to this question is the letter C:
-0.1*65 = -6.5
-6.5+110 + 103.5
N.b., this is copied from an answer I wrote for someone else.Thinking about the graph of y, the rate of change is zero whenever there is an extremum.
First, differentiate y.

Next, find the zeros of y' by factoring.

Now, we substitute these x-values into the
original equation to find the coordinates.
Answer:
x = -2
y = 1
Step-by-step explanation:
-3x - 4y = 2
x = -2
y = 1
3x + 3y = -3
x = -2
y = 1
[c] 70°
40+2x=180
2x=140
x=70
i use 2x since the angle measures of D and C are equivalent since it is an isosceles