What happens to the graph of the function y=x+2 if x is replaced with -3x

Answer 1

It is true, the slope will change directions. A positive (m) value will create a slope that rises from left to right. By making it negative it reverses and now decreases from left to right. The value of 3 for (m) will compress the graph.

***side note: values less than 1 for (m) will stretch a graph. Values greater than 1 will compress the graph.

since the slope is now more steep than the original value, the line will be more vertical than when the slope was 1.

Answer 2

The slope changes from +1 to -3