Answer:
x=9
Step-by-step explanation:
Answer: its 42
Step-by-step explanation:
Answer: the last option (:
Step-by-step explanation:
You always put the slope in front of the x intercept in the equation.
Answer:
To find critical points, take the first derivative and set it equal to zero:
f(x) = -2x^2 + 4x + 5
f'(x) = -4x + 4
-4x+4 = 0
-4x = -4
x = 1
Critical point at x = 1
Alternatively, if you mean zeros, or where the x intersects, you can use the quadratic equation.
The answer is D, because in the step before that it was proved that the triangles were congruent and CPCTC is used after they are proved congruent.
