Use the interactive graph to plot each set of points. Which sets represent proportional relationships?
Check all that apply.

1. (3, 1). (6,2), (9. 3)
2. (2, 4), (4, 6), (7.9)
3. (1.5, 3), (3,6). (4,8)
4. (3, 1). (4, 3). (8. 6)

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this

the answer is 24

step-by-step explanation:

all the angles opposite to the angle 150 would be 150 and all the angles that are next to 150 are 30 because they equal 180 it you add it up.

step-by-step explanation:

do you have an easier question cause this shh is hard like theheck

step-by-step explanation: