How is the graph of y = 2x^2 + 4 different from the graph of y = 2x^2?

Question

a. It is shifted 4 units up
b. It is shifted 4 units down
c. It is shifted 4 units right
d. It is shifted 4 units left

A ball is thrown into the air with an upward velocity of 48 ft/2. Its height h in feet after t seconds is given by the function h = −16t^2 + 48t + 5. How long does it take for the ball to reach its maximum height? What is the ball’s maximum height?
a. 1.5 seconds, 41 feet
b. 3 seconds, 5 feet
c. 1.5 seconds, 53 feet
d. 1.5 seconds, 113 feet

please help

Answer 1

For #1, picking a few ordered pairs, then plotting them will show the result.

#2, what method have you learned to find the vertex of this parabola?
Once you find the vertex, you have the time when the max is reached and its max height

Answer 2

bruh.