can someone help out with this please

Answer:
2x+4
Step-by-step explanation:
mx+b
goes up two then over one, best way to remember is ryse over run ! rise with a y meaning y goes on top, so technically the answer would be
[tex] \frac{2}{1} x + 4[/tex]
the plus four is the 'b' or the y intercept so where the line crosses the vertical y.
hope this helped !