I'm guessing 1 and 4, but I'm not sure.
L(which is length) is equal to 42 divided by width which is 6. so the equation is L=42/6
TTese are all parabolas whose axis of symmetry is the y axis. The negative coefficient means they open downwards and the positive mean they open upwards. The higher the absolute value of the coefficient is the greater the slope, so 2x^2 will be steeper than x^2 and -4x^2 will be steeper than - 2x^2.
So h(x) and j(x) are the answers.
The answer to the question
