# How do you write the equation of a line that passes through point: (1, 9) and has slope 5?

##### 1 Answer

Mar 22, 2018

#### Explanation:

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

#•color(white)(x)y=mx+b#

#"where m is the slope and b the y-intercept"#

#"here "m=5#

#rArry=5x+blarrcolor(blue)"is the partial equation"#

#"to find b substitute "(1,9)" into the partial equation"#

#9=5+brArrb=9-5=4#

#rArry=5x+4larrcolor(red)"is the equation of the line"#