What's the justification for 2x + 0 = 22

The trigonometric ratios sine and secant are reciprocals of each other

If the function m(x) has the point (5,2) on its graph name a point that would be on the funtion m(5x)

Suppose you are analyzing the relationship between time and distance given in a table,and there are 4 values for each quantity.you divide distance 2 minus distance 1 by time 2 minus time 1.you then divide distance 4 minus distance 3 by time 4 minus time 3 and get a different answer.what can you say about the relationship?