What is the equation of the line that passes through the point (2,−4) and has a slope of 2?

Ihonestly don’t understand this at all

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1