how do I graph each function and state the domain and range? y=0.3x?

Answer 1

Domain: all real numbers, or -infinity < x < infinity.
The range is the same, in this case.

Graphing: the graph of this function is a straight line. The slope is 0.3 = 3/10, so that means for every 10 units that x increases, the y-value increases by 3. Also, the y-intercept of this function is 0, so the line passes through the point (0,0). Plot that point, and also the point (10,3), and then draw a line that passes through both points.

Answer 2

domain: all real numbers,
range: all real numbers,
and the graph is a straight line, that passes throu the origin
and with slope =3/10=0.3