Answer:
y = 384
Explanation:
Find an equation that fits the graph
When the value varies directly, y = kx.
Find k by substituting x and y in the equation
y = kx
48 = 18k
k = 48/18
k = 8/3
To find the value of y when x= 144 by substituting x for 144
y = 8/3 x
y = 8/3 (144)
y = 1152/3
y = 384
y is 384 when x is 144.