1.
Emily filled an empty horse trough with
water. The water level, in centimeters, is proportional to time elapsed, in
minut
es, since she began filling the trough. The graph shows this relationship.
(a) What
rate does the point 8,28 represent?
Explain.
(b) What
is the unit rate for the situation in terms of centimeters/minute? Explain.
(c) Explain
how the points 8,28 and 6,21 show that the water
level varies directly with the time elapsed.
(a) The rate that the point 8,28 represents is 3.5 cm/s since 28/8 = 3.5 (b) The unit rate is 3.5 cm/s since the rate is constant. (c) The two points lie on the same line and that both points results to a rate of 3.5 cm/s.<span />
