A subway train travels at a rate of 50 miles per hour. Write and solve an equation to find the number of minutes it take for the
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The equation y = -1/x represent a inverse variation
<u>Solution:</u>
Given, equation is
We have to find the relation between x and y
Now, for finding the relation we have to take two sets of values of x and y and substitute them in given equation.
If we observe, when y value is decreased from 1 to – 1, the value of x is increased from -1 to 1
Hence, the x and y varies inversely