How do you find the x and y intercepts for $x + y = 3$ ?

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Answer 1 · 2015-12-04T07:58:17

The x-intercept is $3$ , and the point is $(3,0)$ .
The y-intercept is $3$ , and the point is $(0,3)$ .

The x-intercept is the value of $x$ when $y=0$ . Substitute $0$ for $y$ in the equation.

$x+y=3$

$x+0=3$

$x=3$

The x-intercept is $3$ , and the point is $(3,0)$ .

The y-intercept is the value of $y$ when $x=0$ . Substitute $0$ for $x$ in the equation.

$x+y=3$

$0+y=3$

$y=3$

The y-intercept is $3$ , and the point is $(0,3)$ .

graph{x+y=3 [-10, 10, -5, 5]}

How do you find the x and y intercepts for x + y = 3x + y = 3?