Help me and i need an explanation please
1 answer:
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Since they are simmilar we will then have the following relationships.
Now, we solve for x, as follows:
The expression goes along the lines of. 15 is to 10 what 9 is to x, with this as was done we solve for x and determine it's value, that since they keep proportionality.
The equation of a line that passes through 
and has a slope of m is 
so given the point (3,1) and slope -2
(3,1), (x1,y1)
x1=3
y1=1
m=-2
the equation is
so given the point (3,1) and slope -2
(3,1), (x1,y1)
x1=3
y1=1
m=-2
the equation is