The point (1, -5) is an ordered pair for which function?

a. ƒ(x ) = 3x - 11
b. ƒ(x ) = 2x - 7
c. ƒ(x ) = -x + 9

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

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.