5.1.2 Using Intercepts − Practice
1. Find the x - and y -intercepts.
2. Find the x - and y -intercepts.
3. Mark has to travel a distance of 400 miles. He travels at a speed of 50 miles per hour. The function f ( x ) = 400 − 50 x represents the distance he has to travel after x hours. Graph this function and find the intercepts. What does each intercept represent?
4. Sam takes part in a car race that has 20 laps. He completes 4 laps every 3 minutes. The number of laps Sam has left to drive after x minutes is represented by the function f ( x ) = 20 − (4/3)( x ). Graph this function and find the intercepts. What does each intercept represent?
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