The answer is (1,-4)
Remember that the vertex is the center of the parabola.
Answer:
J-o+e m=a+m-a
Step-by-step explanation:D+e_e_z n-u+t-s
85/11.9 whatever that works out to
Cosα=x/L
L=x/cosα, we are told that the ladder base is 48 ft from the base of the wall and α=39° so:
L=48/cos39 ft
L≈61.76 ft (to nearest hundredth of a foot)