How do you write an equation of a line with point (2,4) slope 2?

1 Answer
Dec 22, 2016

#y=2x#

Explanation:

The equation of a line in #color(blue)"point-slope form"# is.

#color(red)(bar(ul(|color(white)(2/2)color(black)(y-y_1=m(x-x_1))color(white)(2/2)|)))#
where m represents the slope and # (x_1,y_1)" a point on the line"#

#"here " m=2" and " (x_1,y_1)=(2,4)#

#rArry-4=2(x-2)#

distribute and collect like terms.

#y-4=2x-4#

#rArry=2x-4+4rArry=2x" is the equation of the line"#
graph{2x [-10, 10, -5, 5]}