For what value of q does the point (−1; q) belong to the graph of the function y = 3x?

In order to find out at what value of q the point (-1; q) belongs to the graph of the function y = 3x, you need to substitute the coordinates of the point instead of x and y in the equation of the function and solve the resulting equation for q:

q = 3 * (- 1) = – 3.

Hence, the sought value q = – 3.



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