Find an equation in slope intercept form of the line that has slope four and passes through point A (3, -4)

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

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

Graph red beads cost $1 an ounce and gold beads cost $3 an ounce. juanita wants to purchase a 12-ounce mixture of red and gold beads that she can sell for $2 an ounce. the solution of the system shows the number of beads needed for juanita to break even. x + y = 12, x + 3y = 24 how many ounces of red beads will juanita buy to break even? how many ounces of gold beads will she buy?