Hi there!
The answer is 3.8
The slope of a line is a number that indicates the steepness and the direction of a line. A line with a negative slope is a decreasing line, and a line with a positive slope is increasing.
The slope of a line is the number that is positioned just before the variable in the equation, which is mostly the x. In this situation, the number that is positioned in front of the x, is 3.8. Therefore, the slope of the line is 3.8. This also indicates that the function is steep and increasing.
~ Hope this helps you!