00:01
Okay, so for part a, from the given information, i know my hk values are going to be 2 and 8.
00:09
So h equals 2, k equals 8.
00:17
Part b, i'm just going to substitute those values in.
00:21
So of a times x minus 2 quantity squared plus 8.
00:29
Okay, c, if we plug in 4, we should get 0.
00:34
So if we plug in 4, we're going to get 2 squared.
00:36
So 4a plus 8 equals 0.
00:40
0 and therefore a is equal to negative 2.
00:54
Okay, part d, we're just going to substitute that back in and write our equation.
01:00
So y equals negative 2 times x minus 2 quantity squared plus 8...