How do you solve this?
3-2k+3k=5

How to determine whether two known pairs of points are on the same line.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

For problems 29 - 31 the graph of a quadratic function y=ax^2 + bx + c is shown. tell whether the discriminant of ax^2 + bx + c = 0 is positive, negative, or zero.