He started off with $250 so to find the amount left we just take
250 - 205.305
= $44.695
Or 44 dollars and 69.5 cents. It's a weirdly exact amount, sure, but the question had a very precise exchange rate, so we'll assume this is fine. </span>
Hello, As (2,-4) is the vertex, the parabola is y=k(x-2)²-4 As (3,-1,) is a point of the parabola: -1=k*(3-2)²-4 ==> k=3y=3(x-2)²-4 so, coefficient of x² is 3.