y=-10x+50
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=-10
b=50
The slope of the line is the value of m, and the y-intercept is the value of b.
Slope: -10
y-intercept: 50
Slope: -10
y-intercept: 50
Choose 3 to substitute in for x to find the ordered pair.
Replace the variable x with 3 in the expression.
f(3)=-10⋅3+50
Simplify the result.
Multiply -10 by 3.
f(3)=-30+50
Add -30 and 50.
f(3)=20
The final answer is 20.
20
20
The y value at x=3 is 20.
y=20
y=20
Create a table of the x and y values.
xy320320
xy320320
Graph the line using the slope and the y-intercept, or the points.
Slope: -10
y-intercept: 50
xy320320
Graph y=-10x+50
