Answer:
y = 1/2x-1/2
Step-by-step explanation:
y = mx+b is the slope intercept form of a line
where m is the slope and b is the y intercept
y = 1/2x +b
We can substitute the point (3,1) in for x and y
1 = 1/2(3) +b
2/2 = 3/2 +b
2/2 -3/2 = b
-1/2 =b
well combine like terms
-3x = -21
divide both sides by -3
x = 7
3(4 + 5 + 6)
= 3(15)
= 3 × 15
= <em><u>45 (Ans)</u></em>
