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9 July, 07:17
How Do I Find The Domain & Range Of
y=2x-4?
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Elisa Trevino
9 July, 07:55
0
graph is linear:
y=2x-4
solve for x=o
y=2x0-4 Eliminate 0
y=-4 solved for y
solve for y=0
0=2x-4 add 4
+4 + 4
4=2x divide by 2
/2 / 2
4/2 = x
2=x solved for x
calculate the slope
Solve for x=1
y=2x1-4
y=2-4
y=2 solved for y
Calculating the slope
y - y
a = x=1 x=0 = 2
1
The graph is
(0, - 4) (2, 0)
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Twizzler
9 July, 08:22
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The domain is how far left and right it goes on a graph, and the range is how far up and down it goes on a graph. Because this equation is linear (if you graphed it, it would be in a straight line), both the domain and range are infinity, because it keeps going up and to the right, the larger X gets, and smaller and to the left, the more negative X gets.
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