y=1.5x-7.5

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=1.5

b=-7.5

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

Slope: 1.5

y-intercept: -7.5

Slope: 1.5

y-intercept: -7.5

Choose 3 to substitute in for x to find the ordered pair.

Replace the variable x with 3 in the expression.

f(3)=1.5(3)-7.5

Simplify the result.

Multiply 1.5 by 3.

f(3)=4.5-7.5

Subtract 7.5 from 4.5.

f(3)=-3

The final answer is -3.

-3

-3

The y value at x=3 is -3.

y=-3

y=-3

Choose 2 to substitute in for x to find the ordered pair.

Replace the variable x with 2 in the expression.

f(2)=1.5(2)-7.5

Simplify the result.

Multiply 1.5 by 2.

f(2)=3-7.5

Subtract 7.5 from 3.

f(2)=-4.5

The final answer is -4.5.

-4.5

-4.5

The y value at x=2 is -4.5.

y=-4.5

y=-4.5

Create a table of the x and y values.

xy2-4.53-3

xy2-4.53-3

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

Slope: 1.5

y-intercept: -7.5

xy2-4.53-3

Graph y=1.5x-7.5