The part of the expression the arrow points to isn't shown in the question. However, a general description of the expression will be given to cover all parts of the expression.
Answer:
3 = slope or gradient
-2 = intercept
Explanation:
The expression 3x - 2 is represented in the gradient intercept format:
The general format for a gradient intercept equation is :
mx + b
Where ;
m = Slope ; b = intercept
Comparing the expression with the general format given :
m = 3 = gradient or slope
b = - 2 = intercept