Which functions are nonlinear?

choose all answers that are correct.

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.