Answer:
(-4,-19)
Step-by-step explanation:
y = x² + 8x - 3
y = x² + 2(x)(4) + 4² - 4² - 3
y = (x + 4)² - 16 - 3
y = (x + 4)² - 19
Vertex: (-4,-19)
u just expand the brackets out and make a linear equation to solve from there
43.1 ft
Graph the linear equation.
I think the answer is 8 you should search it up to make sure
