:( i need to graph this equation but idk how to "solve" this equation

Brook states that the distance on the line is 4 units. caleb states that the whole line does not have a distance because it continues on forever. vivian states that the line is 6 units long. which distance did brook measure? which distance did vivian measure?

Solve 2x+y=3 x+y=5 in substitution method

Which of the following represents the length of a diagonal of this trapezoid?