Question

4: In the graph shown here, what is the value of the independent variable when the dependent variable is equal to 2?

A) -2
B) 0
C) 1
D) 2

Answer 1

help

Answer 2

First you'll need to get the equation of the line based on the graph. And then just use 2 as the dependant variable

Answer 3

Can you get it?

Answer 4

Using the equation y=mx+b, to get m (the slope) you take any two points and take the change in y or change in x.

The points I'll use are (2, 0) and (0, 1). The chang in y is 0-1=-1, the change in x is 2-0=2. So the slope m is -1/2.

b is the y intercept, which in this case is 1.

The equation you get is y=(-1/2)x+1
So now just plug in 2 for y and solve for x.

Answer 5

Use the equation y=mx+b where you should substitute the unknowns with numbers from any given point. For example let's use the coordinates (2,0). Substitute this info into the equation where y= 0 , x=2 and b=1(y-intercept).
Hence it becomes 0=2m+1 and m=-2 with the final equation as y=-2x+1

Answer 6

Yeah just the way @ask_if_I'm_a_ghost mentioned

Answer 7

By the way, are you a ghost dude?

Answer 8

No

Answer 9

@.Sam.

Answer 10

your independent variable is x, and your dependent variable is y, so your independent variable would be -2

Answer 11

@katey3324 do you understand what @Ask_If_Im_A_Ghost and @Darv wrote?

Answer 12

nope

Answer 13

What about dix123