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