SAT Math / High Yield Lessons
Find a line’s slope, where it crosses an axis, or a point on it from whichever of the three forms the SAT prints, often with no algebra at all.
The line y equals 2x minus 3 is drawn; its slope of 2 and its y-axis crossing at (0, negative 3) light up. The same line is then written as y minus 5 equals 2 times (x minus 4), and the point (4, 5) lights up. Next, a question asks what the line will do if b goes from negative 3 to 1, and the prediction move up 4, with the same slope, is picked. Dragging the b slider to 1 moves the line up 4, its slope unchanged, and the prediction is marked right. Finally, answer which point is on the graph of y plus 1 equals 3 times (x minus 6), using the buttons after the picture.
