Set up a proportion, cross multiply, and solve.

3(7.2) = 4(x)
21.6 = 4x
5.4 = x
Answer:
I think it’s B
Step-by-step explanation:
I hope I helped
The equation (x+2) as a parabola goes through the origin (0,0) but since there is a +2 outside. You move this parabola up 2 on the y-axis
I would’ve guess it’s 10+20=10+20 since you didn’t show no pic :|
Answer:
The (x,y) point of the vertex is usually labelled as:
Vertex = (h, k)
h = -b / 2a
k = ah^2 + bh + c
f(x) = -3x^2 + 12x -5
a = -3 b=12 c=-5
h = -12 / -6 therefore h = 2
k = -3*2^2 + 12*2 -5
k = -12 + 24 -5 therefore k = 7
Vertex (2, 7)
Source: http://www.1728.org/quadr3.htm
Step-by-step explanation: