# Graph y=4/3x-8

y=43x-8
Use the slope-intercept form to find the slope and y-intercept.
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=43
b=-8
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: 43
y-intercept: -8
Slope: 43
y-intercept: -8
Any line can be graphed using two points. Select two x values, and plug them into the equation to find the corresponding y values.
Choose 3 to substitute in for x to find the ordered pair.
Replace the variable x with 3 in the expression.
f(3)=4(3)3-8
Simplify the result.
Multiply 4 by 3.
f(3)=123-8
Divide 12 by 3.
f(3)=4-8
Subtract 8 from 4.
f(3)=-4
The final answer is -4.
-4
-4
The y value at x=3 is -4.
y=-4
y=-4
Choose 0 to substitute in for x to find the ordered pair.
Replace the variable x with 0 in the expression.
f(0)=4(0)3-8
Simplify the result.
Multiply 4 by 0.
f(0)=03-8
Divide 0 by 3.
f(0)=0-8
Subtract 8 from 0.
f(0)=-8
The final answer is -8.
-8
-8
The y value at x=0 is -8.
y=-8
y=-8
Create a table of the x and y values.
xy0-83-4
xy0-83-4
Graph the line using the slope and the y-intercept, or the points.
Slope: 43
y-intercept: -8
xy0-83-4
Graph y=4/3x-8

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