List the coordinates of any y-intercept and (b) the coordinates of any x-intercept. Do not graph.

Question

List the coordinates of any y-intercept and (b) the coordinates of any x-intercept.  Do not graph.

phi · Answer

you need to solve an equation to answer this.  What is the equation ?

anonymous · Answer

y  = x - 2; (3, 1) 
(-2, -4)

phi · Answer

List the coordinates of any y-intercept

by definition,  a y-intercept is where the line crosses the y axis when x is 0
to find the y-intercept,  replace x with 0 in your equation.  (That means, erase the x, and put 0 in its place):

y = 0 - 2
0 -2 is just -2,  so you get  y= -2
the y-intercept will be at the point   x=0, y= -2, written as   (0,-2)

phi · Answer

for (b) the coordinates of any x-intercept.

that means find x when y is 0:  replace y with 0 in
y = x - 2

what do you get for x ?

anonymous · Answer

That part I get, but how do I put this on a graph?

phi · Answer

the question says  list the coordinates  and  Do not graph. 

Do you still want to graph this line ?  or the x and y intercepts ?

phi · Answer

if so, this explains it well http://www.khanacademy.org/math/algebra/linear-equations-and-inequalitie/graphing_with_intercepts/v/x--and-y-intercepts