Answer:
-2
Step-by-step explanation:
The axis of symmetry divides the quadratic exactly in half. If one x-intercept is 8, then the other will be the same distance on the other side of it. 8 is 5 from 3 where the axis of symmetry is. So 3-5 = -2. -2 will be the other intercept.
C
X can't be negative cause it wouldn't make sense
24
Step 1: Define
x = 2
y = 4
16x + 2x² - y²
Step 2: Substitute and Evaluate
16(2) + 2(2)² - 4²
32 + 2(4) - 16
16 + 8
7.06/0.353 = 20
Answer is 20
x=-1
54x+64=49x+59
subtract 64
54x=49x-5
subtract 49x
5x=-5
divide by 5