Page 100 - Senior Math

Find the angles formed by the intersection of each pair of the following lines.
1) 2𝑥+3𝑦=6 𝑥 + 2𝑦 = 11
2) 3𝑥−4𝑦=16 2𝑥 + 5𝑦 = 15
3) 7𝑥−2𝑦=10 2𝑥 + 𝑦 = 8
4) 5𝑥+3𝑦=21 3𝑥 − 𝑦 = 6
5) 4𝑦+2𝑥=15 2𝑥 − 3𝑦 = 12
6) 1.5𝑥−4𝑦=20 2𝑥 + 3.2𝑦 = 16
7) 23𝑥+14𝑦=5 13 𝑥 − 12 𝑦 = 3
8) 12𝑥−35𝑦=10 14 𝑥 + 25 𝑦 = 1 2
Bonus: Find the point of intersection for the systems of equations above. 99