Question

The height of a kite, in feet, is modeled by the function h(m) = 20m + 100, where m is the number of minutes after a kite-flying competition begins.

(a) Graph the function and label the intercepts.
(b) Interpret the x-intercept in terms of the situation.
(c) Interpret the y-intercept in terms of the situation

Answer 1

x-intercept (along horizontal axis m) = (−5,0)
y-intercept (along vertical axis h) = (0,100)

Plot these 2 points, then draw a line that passes through them

x-intercept represents time when kite was on the ground, immediately before being launched (5 minutes before start of competition)

y-intercept represents height of kite at start of competition (100 ft)