Question

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Answer 1

Answer:

y= - 4x + 50

Step-by-step explanation:

motorboat moves across a lake as a constant speed. when it begins, it is 50 km from the shore

After 9 minutes, it is 14 km from the shore.

So, rate of change = \frac{\text{Final distance}-\text{Initial distance}}{time}=\frac{14-50}{9}=-4

time

Final distance−Initial distance/time

=14−50/9

=−4

Negative sign shows that there is decrease in distance per minute

The rate of change of distance is 4 km / minutes

General equation : y = mx+c

Where m is the slope and c is the constant

Substitute the values in the equation :

y=-4x+50

Where y is the final distance and x is the minutes

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