The # of taxi accidents is approximated by y = - 143.3x^2 + 1823.3x + 6820 and the # of injuries is approximated by y = - 416.72x^2 + 4416.7x + 8500. Let x = 0 represents 1990, x = 1 represents 1991, and so on. According to the equation for the # of accidents, if the trend continued, how many taxi accidents occurred in 1999 and injuries in 1999?

Question

Mathematics

Rosa Walton

2 March, 08:13

The # of taxi accidents is approximated by y = - 143.3x^2 + 1823.3x + 6820 and the # of injuries is approximated by y = - 416.72x^2 + 4416.7x + 8500. Let x = 0 represents 1990, x = 1 represents 1991, and so on. According to the equation for the # of accidents, if the trend continued, how many taxi accidents occurred in 1999 and injuries in 1999?

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Answers (1)

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Emmanuel Ramos · Answer 1

To analyze the problem first is to arrange the equations according to their uses:

# of taxi accident y = - 143.3X^2+1823.3x+6820

# of injuries y = - 416.72X^2+4416.7x+8500

So the answer if X = 9 will be represented by 1999

# of taxi accident y = 11622.4

# of injuries y = 14495.98

I hope you understand the answer and feel free to ask for more.