Graph y=1/2x-9

Math
y=12x-9
Use the slope-intercept form to find the slope and y-intercept.
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The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
y=mx+b
Find the values of m and b using the form y=mx+b.
m=12
b=-9
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: 12
y-intercept: -9
Slope: 12
y-intercept: -9
Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.
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Choose 2 to substitute in for x to find the ordered pair.
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Replace the variable x with 2 in the expression.
f(2)=22-9
Simplify the result.
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Divide 2 by 2.
f(2)=1-9
Subtract 9 from 1.
f(2)=-8
The final answer is -8.
-8
-8
The y value at x=2 is -8.
y=-8
y=-8
Choose 0 to substitute in for x to find the ordered pair.
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Replace the variable x with 0 in the expression.
f(0)=02-9
Simplify the result.
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Divide 0 by 2.
f(0)=0-9
Subtract 9 from 0.
f(0)=-9
The final answer is -9.
-9
-9
The y value at x=0 is -9.
y=-9
y=-9
Create a table of the x and y values.
xy0-92-8
xy0-92-8
Graph the line using the slope and the y-intercept, or the points.
Slope: 12
y-intercept: -9
xy0-92-8
Graph y=1/2x-9

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