64/100 is easy its just 64 out of 100
Answer:
-3
Step-by-step explanation:
Looking at the graph, f(x)=7 is only true at x=-3 or you can use the equation
f(x)=-x+4 where you plug in 7 for f(x) !!
The maximum height is 144 feet.
The maximum height is the y-coordinate of the vertex. To find the vertex, we first use x = -b/2a. For our information, that is x=-64/2(-16) = -64/-32 = 2.
Now we substitute this into the equation:
y = -16(2²) + 64(2) + 80 = -64 + 128 + 80 = 144
62 because 90 minus 15, minus 13, is equal to 62
