Answer:
y= 3x -5
Step-by-step explanation:
Slope- intercept form:
y= mx +c, where m is the gradient (or slope) and c is the y- intercept.
Given that the slope is 3, m=3.
Substitute m=3 into the equation:
y= 3x +c
To find the value of c, substitute a pair of coordinates.
When x=1, y= -2,
-2= 3(1) +c
c +3= -2
c= -3 -2 (-3 on both sides)
c= -5
Thus, the equation of the line is y= 3x -5.
