After reflecting the points of triangle GHI over the y axis, the new points will be:
G' (3,0)
H' (5,-5)
I' (-1,-5)
First, solve for slope.
Formula for slope:
Plug in values:
Slope:
Second, we must plug into point-slope form.
Formula for point-slope:
Plug in the values
hope this helps
Step-by-step explanation:
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.
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..1
1
1
1
1
2
2
2
3
3
3
34
4
4
45
5
5
5
56
6
6
5i d
s
6
The third angle is 60 degrees. A triangle has 180 degrees so 180-30-90=60
-12+3b-1=-5-b
Combine like terms to get:
3b-13=-5-b
Add 13 to both sides:
3b= 8-b
Add b to both sides:
4b=8
Divide both sides by 4:
4b/4=8/4
b=2
Final answer
b=2
