Answer:
x = 4
Step-by-step explanation:
steps are in the pic above.
Answer: a
Step-by-step explanation:
Answer:
d. f opens upward with a y-intercept at (0, 2); h opens downward with a y-intercept at (0, -2)
The two points have the same y coordinate, which means that the line is horizontal, which means that the slope is 0.
So, the equation is y=4