Add 3 + (-27) using the number line. Select the location on the number line to plot the sum
-2
1
-1
0
1
2
1
1
2
2
12

Right ∆abc has coordinates a(-7, 3), b( -7, 10), and c(-1, 3). the triangle is reflected over the x - axis and then reflected again over the y - axis to create ∆a'b'c'. which are the coordinates of vertex a'?