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Graph by Making a Table:
The equation is .
Make a table; choose some values for x and find the corresponding values for y.
x |
y = 3x |
y |
(x, y) |
– 2 |
= 3(– 2)= – 6 |
–6 |
(– 2, –6) |
– 1 |
= 3(– 1)= – 3 |
– 3 |
(– 1, – 3) |
0 |
= 3(0) = 0 |
0 |
(0, 0) |
1 |
= 3(1) = 3 |
3 |
(1, 3) |
2 |
= 3(2) = 6 |
6 |
(2, 6) |
Use these ordered pairs to graph the equation.
1. Draw a coordinate plane.
2. Plot the points.
3. Draw a line through these points.
4.Draw a line .
The graph of and both have a y-intercept of 0, but the graph of
has a slope of 3 instead of 1.
The graph of and both have a y-intercept of 0, but the graph of
has a slope of 3 instead of 1.
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