If a 2kg ball rolls down a ramp that is 15 meters long in 25 seconds, what is the average speed of the ball? *
O v = 2kg / 15m
v = 15m / 25s x 2kg
v = 15m / 25s
v = 15m x 25s x 2kg
O v = 15m x 255

δabc ≅ δdcb by sas because

db ≅ ac . . given (side)

bc ≅ bc . . reflexive property (side)

∠dbc ≅ ∠ acb . . alternate interior angles where transversal bc crosses parallel lines bd and ac (included angle)

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).