Can someone please help me?

Given the graph below state whether or not the relation is a function, and give the domain and range.

What is sin 7x/4 ? i need on this urgent trig

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =