Answered

in the xy plane below, point c has coordinate (6,9). what is the equation line contains point o and c



Answer :

thimmu
Two points on the line are (0, 0) and (6, 9) 

The slope of the line including them is the change in y over the change in x 
m = (9 - 0) / (6 - 0) 
m = 1.5 

y = 1.5x + b 

because the origin is one of the points on the line, the y intercept is zero 
b = 0 

so the line equation is 

y = 1.5x