Perhaps you miswrote the question because in your second equation there is no x variable. However, I inferred that you meant to write -4x+y=1, and was able to solve this system of equations. You can do this either by the substitution method or the graphing method, of which I used the latter. The solution to this system of equations is (0,1). Best wishes! c:
Aos= -b/2a so plunin your numbers and you'll get the AOS so you can find the vertex
The correct answer would be
A) 80 because if we organize all the tests scores from smallest numbers to biggest, and cross out numbers from each side, and keep going till one is left, we see 80 is the last number in the middle. *below is a image of my work.
well your first term is obviously 5, then substitite n for 2, 3, and 4
a2 = a1+5 --> a2 = 12
a3 = a2 +5 --> a3 = 17
a4 = a3+ 5 --> a3 = 22
