Answer:
C = 2
Step-by-step explanation:
An applicable equation of a vertical parabola in vertex form is:
y-k = a(x-h)^2
Let x=2, y=4, h=-1 and k=-1, where (h,k) is the vertex. Then,
4-(-1) = a(2-[-1])^2, which becomes 5 = a(9). Therefore, a = 5/9, and the
equation of the parabola is
y+1 = (5/9)(x+1)
Answer: its 18.27
Step-by-step explanation:
Answer:
we need the picture. we cant do this without the picture
Step-by-step explanation:
Answer:
the answer is C (0, -9)
Step-by-step explanation:
to find y-intercept we need to keep the value x=0
in the given equation
