y=12x+72

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=12

b=72

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

Slope: 12

y-intercept: 72

Slope: 12

y-intercept: 72

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

Replace the variable x with 1 in the expression.

f(1)=12+72

Simplify the result.

Combine the numerators over the common denominator.

f(1)=1+72

Add 1 and 7.

f(1)=82

Divide 8 by 2.

f(1)=4

The final answer is 4.

4

4

The y value at x=1 is 4.

y=4

y=4

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

Replace the variable x with 3 in the expression.

f(3)=32+72

Simplify the result.

Combine the numerators over the common denominator.

f(3)=3+72

Add 3 and 7.

f(3)=102

Divide 10 by 2.

f(3)=5

The final answer is 5.

5

5

The y value at x=3 is 5.

y=5

y=5

Create a table of the x and y values.

xy1435

xy1435

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

Slope: 12

y-intercept: 72

xy1435

Graph y=1/2x+7/2