Question

solve the system of linear equations by graphing 3x+y=-1

Answer 1

The linear equation 3x + y  = - 1

Write the equation in slope-intercept form y = mx + b , where m is slope and b  is y - intercept.

The equation is y  = - 3x - 1

slope = -3 and y - intercept is - 1.

y - intercept is -1, so the line crosses the y - axis at (0, -1)

Using slope find the next point.

Slope = rise/run = - 3/1

Start at point (0, - 1), move 3 units down and 1 unit right, then plot the point (1, - 4).

Draw a line through these points.

Graph :