Y=3x+5 that passes through (4,-1)

No, not a solution

Step-by-step explanation:

Step 1:  Check if solution

y = 3x + 5

-1 = 3(4) + 5

-1 = 12 + 5

-1 = 17

DOES NOT EQUAL

No, not a solution

for finding the midpoint of any given 2 pair of points simply add the respective x coordinates with other x coordinate and the y coordinate with other y coordinate and divide them by 2

in your question it will be :

(3+1)/2 for the x coordinate of mid point i.e 2

[8+(-4)]/2 for the y coordinate of midpoint i.e 2

so coordinates of mid point of points (3,8) and (1,-4) will be (2,2)