PLS HELP I NEEED THIS In which of the following expressions is the coefficient of term "x" 1?

2x2+x−9
2 x squared plus x minus 9

x2+2x+7
x squared plus 2 x plus 7

3x2−x−5
3 x squared minus x minus 5

2x2−3x+1

you divide the cost ($15) by the quantity (6) to get your questions answer. the yo-yo costs $2.50. hope this : )!

step-by-step explanation:

mrbilldoesmath!

answer: a parabola

steps:

(x-1)(x+4)   = x(x+4) - 1(x+4) = (x^2 + 4x) - (x+4)

                = x^2 +4x -x -4   = x^2 +3x -4

which is a parabola

mrb