The arithmetic sequence below shows the costs, in dollars, of riding 1,2,3, and 4 miles (and so on) in a certain taxicab. 5.30, 7.80, 10.30, 1280, ...
Which function represents the nth term of this sequence, for n = 1, 2, 3, 4, ... ?
f(n) = 2.80+ 2.50n
f(n) = -2.50+ 7.80n
f(n) = 5.30+ 7.80n
f(n) = 5.30 + 2 50n

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

what do you mean

have a great day

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