y=-x-20

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=-1

b=-20

The slope of the line is the value of m, and the y-intercept is the value of b.

Slope: -1

y-intercept: -20

Slope: -1

y-intercept: -20

Choose 0 to substitute in for x to find the ordered pair.

Replace the variable x with 0 in the expression.

f(0)=-(0)-20

Simplify the result.

Multiply -1 by 0.

f(0)=0-20

Subtract 20 from 0.

f(0)=-20

The final answer is -20.

-20

-20

The y value at x=0 is -20.

y=-20

y=-20

Choose 1 to substitute in for x to find the ordered pair.

Replace the variable x with 1 in the expression.

f(1)=-(1)-20

Simplify the result.

Multiply -1 by 1.

f(1)=-1-20

Subtract 20 from -1.

f(1)=-21

The final answer is -21.

-21

-21

The y value at x=1 is -21.

y=-21

y=-21

Create a table of the x and y values.

xy0-201-21

xy0-201-21

Graph the line using the slope and the y-intercept, or the points.

Slope: -1

y-intercept: -20

xy0-201-21

Graph y=-x-20