Answer: y= -1x + 3
Step-by-step explanation:
We need to first find the slope of the line which is the difference between the y values divided by the difference between the x values.
(-1,4) (1,2) The coordinates of y are 4 and 2 and the coordinate of x are -1 and 1.
4 - 2 = 2
-1 - 1 = -2
2/-2= -1
The slope is -1 .We will now use the formula y=mx +b to find the y intercept.
M is the slope and b is the y intercept.
Input the x and y coordinate for one of the points and the slope to solve for b.
We will use the point (-1,4)
4 = -1(-1) + b
4 = 1 + b
-1 -1
b= 3
We will know have the equation y= -1x + 3
