Question

Two quantities are related, as shown in the table below:

x y
2 3
4 4
6 5
8 6


Which equation best represents the relationship? (4 points)


y = x + 2

y = x + 1

y = x + 2

y = 2x + 1

Answer 1

(2,3)(4,4)
slope(m) = (4-3) / (4-2) = 1/2

y = mx + b
slope(m) = 1/2
(4,4)...x = 4 and y = 4
now we sub
4 = 1/2(4) + b
4 = 2 + b
4 - 2 = b
2 = b

equation is : y = 1/2x + 2