What are two equivalent fractions to 3/8

Consider the table below. x y -1 -5 0 5 1 11 2 13 3 11 complete the standard form equation representing the quadratic relationship displayed above, where a, b, and c are constants.

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.