A city map is laid out on a coordinate plane. Elm Street is described by the line x + 2y = -6. Oak street intersects Elm Street at an right angle. Which of the following could be the equation for Oak Street?
a. 2x + y = 5
b. -2x + y = 3
c. x + 2y = 4
d. -x - 2y = 8
My answer: d?
1 answer
see later post