A professional triathlete competes in an Austin bike race. She takes 1.5 hours to travel the entire course. Her speed varies from 0 kilometers per hour (km/hr), while stopped for a tire change, to 30 km/hr while riding downhill. The illustration shows her trip distances for each section of the race. What is the rider's average speed in km/hr during the 1.5 hour bike race?

step-by-step explanation:

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.

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step-by-step explanation: