What do the letters mean in an equation that is in the slope-intercept form. How do you graph an equation if you had m= -1/3 and b = 2. thank you guys!

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Can someone answer this question for me