Modeling Discrete Data: Quiz
Problem 4
Where do the two lines
intersect?
Answers, problem 4
To find out where the two lines intersect, we know that at the
point of intersection, both y-coordinates are equal.
Therefore 3x - 4 = x + 5
2x = 9
x = 4.5
So y when x = 4.5 is 4.5 + 5 = 9.5
(x, y) = (4.5, 9.5)