**What Are The Domain And Range Of Fx4x 8**. In this case there is no real number that makes the expression undefined. Square root of cosx.

Yx -2 C. -2x y D. S8 S2.

### Then sketch the graph.

Domain for all of linear function is always x x is a real number The value of fx 4x - 8 for x is a real number will also be a real number so. Locate the vertex of the parabola. 1 Get Other questions on the subject. X-80 So the domain is all the real x bigger or equal to 8.