How do i find the end behavior for polynomial, radical, exponential, logarithmic, and rational functions

The diagram represents the polynomial 4x2 + 23x – 72. what is the factored form of 4x2 + 23x – 72? (4x + 8)(x – 9) (4x – 8)(x + 9) (4x + 9)(x – 8) (4x – 9)(x + 8)

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

Which equation represents a direct linear variationa. y=x2b. y=2/5xc. y=1/xd. y=x+3