Evaluate this expression what is a=3 and x=-3. 4a-x

For how answer my question this will be the last question can you answer in math subject

What does the sign of the slope tell you about a line?

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)