The graph of a line in the xy-plane has slope -3 and y-intercept 3. The graph of a second line has slope 3 and y-intercept -9.

At what point do the two lines intersect?

Of four points are collinear, they are also coplanar

Which of the following points is collinear with (-2,1) and (0,3)

The value of x in this system of equations is 1. 3x + y = 9 y = –4x + 10 substitute the value of y in the first equation: combine like terms: apply the subtraction property of equality: apply the division property of equality: 3x + (–4x + 10) = 9 –x + 10 = 9 –x = –1 x = 1 what is the value of y?