A piece of cheese is located at 12 , 10 in a coordinate plane. A mouse is at 4 , − 2 and is running up the line y = − 5 x + 18 to get closer to the piece of cheese. At the point a , b , the mouse starts getting farther from the cheese rather than closer to it. Then the value of a + b is

Question

A piece of cheese is located at 12 , 10 in a coordinate plane. A mouse is at 4 , − 2 and is running up the line y = − 5 x + 18 to get closer to the piece of cheese. At the point a , b , the mouse starts getting farther from the cheese rather than closer to it. Then the value of a + b is, 6, 10, 18, 14

MARKS App · Accepted Answer

a , b is the foot of the perpendicular from 12 , 10 on the line y + 5 x = 18 ⇒ a - 1 2 5 = b - 1 0 1 = - 1 0 + 5 1 2 - 1 8 2 6 ⇒ a, b = 2, 8

Search any question & find its solution

Looking for more such questions to practice?