Well first you gotta find the area of the first rectangle and multiply the area of it by two, and do the same with other ones
F(x)=2x^2-10
f(5)=2(5^2)-10
f(5)=2(25)-10
f(5)=50-10
f(5)=40
On graph
y = 30x
so if x = 12 ; y = 30(12) = 360
table
y = 25x
so if x = 12 ; y = 25(12) = 300
360 - 30 = 60
60 more on graph than table
answer
<span>60</span>