Question

toni is testing her new model airplane. she starts its descent at an elevation of 1,200 feet. it descends at a constant rate of 200 feet per minute. what is the vertical intercept for this line? in other words, at what elevation did the plane start to descend? the slope is -200. the vertical intercept is \boxed{}.

Explanation:

Step1: Define vertical intercept meaning

The vertical intercept (y-intercept) of a linear relationship is the value of the dependent variable (elevation, $e$) when the independent variable (time, $t$) is 0.

Step2: Identify initial elevation

When $t=0$ (start of descent), the elevation is given as 1,200 feet. This matches the point on the graph at $t=0$, $e=1200$.

Answer:

1200