First we need to calculate the equation of f(x)
we need to calculated the slope m, using two points
(0,450)=(x1,y1)
(8,690)=(x2,y2)
[tex]m=\frac{y_2-y_1}{x_2-x_1}=\frac{690-450}{8-0}=30[/tex]m=30
the y-intercept b is where the line touches the y-axis in this case
b=450
the equation of the line is
[tex]f(t)=30t+450[/tex]The answers to the first 2 sentences are bold
The y-intercept, b, of f(t) is 450 and the slope, m, of f(t) is 30
So f(t) = 30t + 450.
In the case of g(x)
(0,210)=(x1,y1)
(8,690)=(x2,y2)
[tex]m=\frac{690-210}{8-0}=\frac{480}{8}=60[/tex]b=210
m=60
so the equation for g(x)=60x+210
The y-intercept, b, of g(t) is 210 and the slope, m, of g (t) is 60
So g(t) =60t+210
Part 2
The y-intercept represents the starting number of apples picked
The slope represents the number of apples picked per hour
The solution (8,690) represents a total of 690 apples each person gas after 8 hours