What is the equation of the following direct variation? y = -2x
y = -x
y = 2x
y = x

y=-2x

Step-by-step explanation:

Because, let us take (-1,2)

2=-2(-1)

2=2

Similarly all the points show the same.

y=-2x

Step-by-step explanation:

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

answer is c

step-by-step explanation:

81/12=324/x

x=48