Question

s there a relationship between the sign (positive or negative) of the slope of a line and the angle the line makes with the x-axis?

For example, if you graph y = 3x+5, versus the graph of y = -3x+5

Answer 1

help

Answer 2

Certainly is. Why not draw the two given graphs?

In y=3x+5, the slope is +3. As x increases, y increases (3 times as much as x increases).
In y=-3x+5, the slope is -3. As x increases, y decreases (3x as much as x increases).
If you understand this, and if you take a look at the respective graphs, I'd bet you could now answer the original question.