Question

The point A(-8, 6) is translated using T: (x,y) → (x + 5. y - 4).
What is the distance from A to A'?

a. 41
b. 21
c. 3
d. 29

Answer 1

Use distance formula: \[\sqrt{(x _{2} - x _{1} ) + (y _{2} - y _{1} )}\]
\[\sqrt{(-3+8)^2 + (2-6)^2}\]
\[\sqrt{(5)^2 +(-4)^2}\]
\[\sqrt{25+16}\]
\[\sqrt{41}\]
a is the answer