What is the slope of the line defined by the equation 3x - y = 0?

The slope of the line is 3.
First, solve the equation for y:

Slope-intercept form is where y = mx + b, where m is the slope and b is the y-intercept. Since m = 3, the slope of the line is 3.

0

Step-by-step explanation:

Given(x + )(y + ) = 1(x+y)² = ?Solution

Let's make substitution as:

(x + ) = m

then

(y + ) = 1/m

Solving the first equation for x and the second one for y:

(x + ) = m = m - x1 + x² = (m - x)²1 + x² = m² - 2mx + x²2mx = m² - 1x = (m² - 1)/2m

And

(y + ) = 1/m = 1/m - y1 + y² = 1/m² -2y/m + y²1 = 1/m² - 2y/m m² = 1 - 2my2my = 1 - m²y = (1 - m²)/2my = - (m² - 1)/2m

Now, sum of x and y:

x + y =  (m² - 1)/2m - (m² - 1)/2m = 0

Therefore:

(x+y)² = 0

Answer is zero