The opposite of -1 ? Please help fast

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

20 ! jason orders a data set from least to greatest. complete the sentence by selecting the correct word from each drop-down menu. the middle value of the data set is a measure and is called the part a: center b: spread part b: mean a: mean absolute deviation b: median c: range

Ineed the solution to this problem and the steps.