Question

PLEASE HELP The equation of the line below is: y = -4x + 4. y = -2x + 4. y = 2x + 4. None of these choices are correct.

Answer 1

The equation to this line is y=-4x+4

Explanation:

If you look at the graph you can see that the y intercept is 4.

To find the slope take two points on the graph and plug it into be y2-y1/x2-x1

I chose (0,-2) and (-1,2) So 2+2=4 and -1-0= -1 so 4/-1= -4

Answer 2

y = 2x+4

Explanation:

The y intercept ( where it crosses the y axis ) is 4

The slope is positive because the line goes up from the bottom left to top right

We pick two point ( -2,0) and ( 0,4)

The slope is found by

m= (y2-y1)/(x2-x1)

= ( 4-0)/(0- -2)

= 4/ (0+2)

= 4/2

= 2

The slope intercept form of a line is

y = mx+b where m is the slope and b is the y intercept

y = 2x+4