Question

Use the function y=0.0875x^2 - `10.5x + 436.25 calculate the number of accidents that occur at 60 km/h? Select the right answer.

Answer 1

About 121.25

Explanation:

Step 1: Interpret x and y

y is the number of accidents that occur = ?

x is the speed = 60 km/h

Step 2: Substitute value of x in the equation

y=0.0875x² - 10.5x + 436.25

y=0.0875(60)² - `10.5(60) + 436.25

Step 3: Find the value of y

y=0.0875(60)² - `10.5(60) + 436.25

y = 121.25

Therefore, the right answer is the last option which is 'about 121.25.'

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