Ineed to solve the equation for 7x = 3x^2-1
plz

Which of the following parabolas opens down?

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]

Which shows the first equation written in slope-intercept form? 1/2 (2y + 10) = 7x