SOLUTION: Which of these is the equation for a line tangent to the circle x2 + y2 = 20 at point (2, -4)? y = ½x – 5 y = 2x – 5 y = 2x + √20 y = ½x + √20

Algebra ->  Equations -> SOLUTION: Which of these is the equation for a line tangent to the circle x2 + y2 = 20 at point (2, -4)? y = ½x – 5 y = 2x – 5 y = 2x + √20 y = ½x + √20       Log On


   

Question 1080217: Which of these is the equation for a line tangent to the circle x2 + y2 = 20 at point (2, -4)?

y = ½x – 5
y = 2x – 5
y = 2x + √20
y = ½x + √20
Answer by josgarithmetic(39616) About Me  (Show Source):