The function $y=-16x^2+36$ represents the height $y$ (in feet) of an apple $x$ seconds after falling from a tree. Find and interpret the $x$ - and $y$ -intercepts.

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!