What is the y intercept of y= 10x

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.