Help please! Question is in the photo! :)

Solve the system of equations. y= 2x y= x^2 - 15

A, b, c, and d have the coordinates (-8, 1), (-2, 4), (-3, -1), and (-6, 5), respectively. which sentence about the points is true? a. a, b, c, and d lie on the same line. b. and are perpendicular lines. c. and are parallel lines. d. and are intersecting lines but are not perpendicular. e. and are parallel lines.

Which expression will have the same sum as 3_8 + 1/4?