What is the axis of symmetry of the graph of a quadratic function
which vertex at (5, -1)
A. = 5
B. X=- 5
C. y=-1
D. y =-1

b. t=-25h+3

step-by-step explanation:

it has changed from the width and the height.

step-by-step explanation:

first, you divide the triangle in two, tô form a retangle triangle. after, using pythagoream theorem:

18^2 = 14^2 + (x/2)^2

(x^2/4) + 196 = 324

x^2/4 = 324 - 196

x^2/4 = 128

x^2 = 512

x = √512

x = √2^9

x = 16√2 cm

i hope i you.