I need some help with this. Which equation represents direct variation?
A. -2x=3y
B. 5y-x=4
C. 12x-3=4y
D. 5x-2y+3=0

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain

How many terms does the polynomial x^2 y^2 have