Can someone help me with questions 1-5 plz

How do you graph linear equation x+y=4

Question 7 of 47 1 point what is the equation of a line with a slope of 1/2 that passes through the point, (-2,5)? o a. 1/2x+3 o b. y=1/2x+5 o c. y=x+5 o d. y=1/2x+6

I’m still confused on how to work the percentages