Question

emilio started hiking at an elevation of -6 feet below sea level. he hiked up at a rate of 3 feet per minute. this graph represents the relationship between the number of minutes and his elevation. use the slope and vertical intercept to write an equation. what is the vertical intercept of the graph? slope = 3 vertical intercept = \square

Explanation:

Step1: Define vertical intercept

The vertical intercept is the $y$-value when $x=0$.

Step2: Locate $x=0$ on the graph

At $x=0$, the line intersects $y=-6$.

Step3: Confirm with context

Emilio starts at -6 feet, which matches the intercept.

Answer:

-6