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Nine more than four times a number is the same as one less than twice the number. find the number?

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Solve 2x2 + 8 = 0 by graphing the related function. there are two solutions: . there are no real number solutions. there are two solutions: 2 and -2