The line y = 3/4 x - 1 crosses the line y = - 1/2 x + b at the point (4, 2) What is b ? Show your work or use the graph if it helps.

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?

What is the value of the discriminant of the quadratic equation -2x = -8x + 8 and what does its value mean about thenumber of real number solutions the equation has?