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salantis [7]
3 years ago
7

A car is traveling on a highway. The distance (in miles) from its destination and the time (in hours) is given by the equation d

=420-65t. What is the slope of the line represented by the equation? What is the practical meaning of the slope? a. m=420; The total distance is 420 miles. b. m=65; The car is traveling 65 miles per hour. c. m=-65; The car is traveling 65 miles per hour. d. m=-420; The total distance is 355 miles.
Mathematics
2 answers:
qaws [65]3 years ago
6 0
The slope would be -65 and this would indicate the the car is going 65 miles per hour, as it is being subtracted from the distance.
Your answer would be C
egoroff_w [7]3 years ago
6 0

Answer:

m=-65; The car is traveling 65 miles per hour.       Option C

Step-by-step explanation:

Given that, time 't' and distance 'd'.

Equation for distance 'd' in terms of time 't' is given by;

d = 420 - 65t

d = -65t  + 420

We need to find the slope of linear equation.

Slope is coefficient of t, that is -65

So, slope of the line (m) = -65

Here practical definition of slope is, car covered the distance in a hour is 65 miles.

So, m = -65

and the car is travelling 65 miles per hour.

That's the final answer.

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