Step-by-step explanation:
Given the table:
Month f(x) = Number of imports g(x) = Number of exports
January (1) 3 1
February (2) 4 3
March (3) 5 5
April (4) 6 7
From the table, it is clear that:
Number of imports = number of month + 2
so
[tex]f(x) = x + 2[/tex]
also
Number of exports = 2(number of month) + 1
so
[tex]g(x) = 2x - 1[/tex]
Therefore, number of imports equals the number of month plus one. i.e. [tex]f(x) = x + 2[/tex], which is a linear function.
If we compare it with slope-intercept form of the line
[tex]y=mx+b[/tex]
Then,
slope = m = 1
y-intercept = 2
Also number of exports equals is also a linear function.
i.e. [tex]g(x) = 2x - 1[/tex]
Here,
slope = m = 2
y-intercept = -1