Find the Equation Using Slope-Intercept Form m=7 , (0,9)

$m = 7$ , $(0, 9)$

Step 1

Find the value of $b$ using the formula for the equation of a line.

Use the formula for the equation of a line to find $b$ .

$y = m x + b$

Substitute the value of $m$ into the equation.

$y = (7) \cdot x + b$

Substitute the value of $x$ into the equation.

$y = (7) \cdot (0) + b$

Substitute the value of $y$ into the equation.

$9 = (7) \cdot (0) + b$

Find the value of $b$ .

Rewrite the equation as $(7) \cdot (0) + b = 9$ .

$(7) \cdot (0) + b = 9$

Simplify $(7) \cdot (0) + b$ .

Multiply $7$ by $0$ .

$0 + b = 9$

Add $0$ and $b$ .

$b = 9$

Step 2

Now that the values of $m$ (slope) and $b$ (y-intercept) are known, substitute them into $y = m x + b$ to find the equation of the line.

$y = 7 x + 9$

Step 3