If you can guess my number from 1-20 in your first try ill give brainliest :)

In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2