Using the formula for lines y=mx+b To find out the gradient of the line, we do (y2-y1)/(x2-x1). (3-6)/(-1-2)= -3/-3= 1 is the slope of the line So far, y=(1)x+b Now substitute one of your given coordinates into this equation: 6=2+b b=4 Therefore, the equation of the line is y=x+4
