The vertex of this parabola is at (3, -2). When the x-value is 4, the
y-value is 3. What is the coefficient of the squared expression in the parabola's equation?

A. 7
B. -1
C. 1
D. 5

Question

The vertex of this parabola is at (3, -2). When the x-value is 4, the 
y-value is 3. What is the coefficient of the squared expression in the parabola's equation?

A. 7
 B. -1
 C. 1
 D. 5

Vocaloid · Answer

the equation for a parabola is:

f(x)=a(x-h)2+k

you are given the vertex (3,-2). remember that vertex = (h,k) so h = 3 and k = -2

you are also given the data point (4,3) so you can substitute x = 4 and f(x) = 3 into the equation

3 = a(4-3)^2 + 2

solve for a

Vocaloid · Answer

please let me know if you are having trouble. please do not just leave without telling me.

Vocaloid · Answer

@verniya11 please come back and let me know if you are having trouble