Write the equation of the line given points (-2,5) and (1, -4)

y= -3x-1

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is its gradient and c is its y-intercept.

Using the above formula, let's find the gradient of the line, m.

Substitute the value of m back into the equation.

y= -3x+c

To find c, substitute a coordinate into the equation.

When x= -2, y= 5,

5= -3(-2) +c

5= 6 +c

c= 5-6

c= -1

Thus, the equation of the line is y= -3x -1

answer: 1 and 3

step-by-step explanation: