Define the function y = kx by the equation if it is known that the graph of this function passes through the point B (-5; 2)

The function that we have to find is the equation of the line. Because the form of the equation is a straight line:
y = kx, where k is the proportionality coefficient, if k> 0, then the function increases, and vice versa.

Thus, the first point through which the straight line will pass has coordinates (0,0), based on the equation above, the second point is given by condition. Let’s find the coefficient k from the coordinates of the second point:

2 = k * (-5);

k = -2/5.

Answer: y = -2/5 * x