Two parallel lines are crossed by a transversal.
2 answers:
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The slope formula is 
. For the two points, 
. You can pick any of the Y and X from these two points, but only once. 
= 
= 2 or 
= 
= 2 and both will equal to. The answer for the slope is 2.
The answer is C that is X=7 and X=-1
multiple x through the given equation to get rid of a fraction. It will be
After that bring 6X to the LHS of the equation
so that it will look like the general equation that is
Use the quadratic formula (or any other approach to find the values of x
You will arrive at