You have something resembling a Riemann sum. Multiply through the summand by 1/n², then you can write

☁️ Answer ☁️
4a + 2b + 8
Hope it helps.
Have a nice day noona/hyung  ̄▽ ̄
Answer:
The answer for your question is C
Answer:
y = 2x - 3
To plot a graph
you need at least one coordinate and slope
Or
2 coordinates
y = 2x -3
By Comparing with General Equation of a line that is y = mx + c
Here m represents slope
and c is y intercept
which inturn results in m = 2 , c = -3
c = -3
So Coordinate is (0,-3)
Plot (0,-3)
Take a line having slope 2
Then you can plot it