What is the value of x so that the line segment with endpoints A(x, −3) and B(7, −1) is parallel to the line segment with endpoints C(−4, −2) and D(−2, −5)

A) X=5 2/3
B) X=8
C) 8 1/3
D) X=9

Question

What is the value of x so that the line segment with endpoints A(x, −3) and B(7, −1) is parallel to the line segment with endpoints C(−4, −2) and D(−2, −5)

A) X=5 2/3 
B) X=8
C) 8 1/3 
D) X=9

mrnood · Answer

do you know how to find the gradient between 2 points?

shelbyj04 · Answer

no

mrnood · Answer

Well - that is the subject you are studying - you need to understand the equation

m = y2-y1 / x2-x1

that will allow you to find the slope 

Lines that are parallel have the SAME slope

so find the value of the slope of AC 

then using that slope solve the value of A that will give the same slkope for AB

BUt first you should review your notes or text to understand that formula...