it says graph each equation. The domain is R. what does htis mean? how do i do it?
y=2x+1
2007-09-20 08:57:26 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The domain R is the set of all real numbers. They want you to graph the equation y=2x+1 on graph paper so that you can see it's a straight line. Make up a table of (x, y) values be taking a number for x (any old number you want that will fit on your fraph paper), plugging it in for the x in the equation, and getting a y value back. Ths will give you an (x, y) point on the graph. Find 4 or 5 of them, plot them on the graph paper, draw a straight line through them, and your done.
Doug
2007-09-20 09:08:55 · answer #1 · answered by doug_donaghue 7 · 1⤊ 0⤋
It just means that your x's can be any real number....
2007-09-20 16:13:34 · answer #2 · answered by AirAssaultCPT 2 · 0⤊ 0⤋