Which graph represents a proportional relationship?
On a coordinate plane, a straight line with positive slope goes through points (0, 0), (1, 2), and (2, 4).
On a coordinate plane, a vertical line is at x = negative 3.
On a coordinate plane, a horizontal line is at y = 3.
On a coordinate plane, a curved line goes through the origin.

goog may have it for you

a triangular prism is a 3 dimensional shape composed of triangles and rectangles. it is made from two triangular bases and three rectangular sides.  

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)