Question

below is the table for the coordinates of a triangle on the coordinate plane. if the triangle is reflected over the line y = 0. what would be the coordinates of point b?

points	x	y
a	-3	1
b	-1	4
c	-5	2

(1, -4)
(-1, -4)
(-1, 4)
(1, 4)
question 8
below is the table for the coordinates of a triangle on the coordinate plane. if the triangle is rotated 180 degrees about the origin clockwise, what will be the coordinates of point c?

points

x

y

Explanation:

Step1: Recall reflection rule

When reflecting a point $(x,y)$ over the line $y = 0$ (the x - axis), the rule is $(x,y)\to(x, - y)$.

Step2: Apply rule to point B

Point B has coordinates $(-1,4)$. Using the rule, the x - coordinate remains the same and the y - coordinate changes sign. So, $(-1,4)\to(-1,-4)$.

Answer:

B. $(-1,-4)$