

Click here to see ALL problems on Graphs Question 247951: How do you graph y= -x + 1 ?

Found 2 solutions by richwmiller, College Student : Answer by richwmiller(17219) (Show Source):

I would set x=0 and find y and then set y=0 and find x

it is a linear equation which means it produces a line.

You only need two points to plot a line

It slants from high left to low right

You can put this solution on YOUR website!

Answer by College Student(505) (Show Source):





Then assign a value to x. Write it down under the x column.

Solve for y. Write the result under the y column.

Your x and y values would be your first point in the cartesian plane.

You only need to do this with two x values to determine a straight line.

However, plotting more points helps to ensure us that we are on the right track.



When x=1, y=-(1)+1=0 ... our first point is (1,0)

When x=2, y=-(2)+1=-1 ... our second point is (2,-1)

When x=3, y=-(3)+1=-2 ... our third point is (3,-2)

Let's try a couple of negative x values:

When x=-1, y=-(-1)+1=1+1=2 ... our fourth point is (-1,2)

When x=-2, y=-(-2)+1=2+1=3 ... our fifth point is (-2,3)



If we plot all point in the cartesian plane, our graph would look like the one below.

Follow the line and the (x,y) values... they are all represented in this graph.



When you don't have a graphing calculator, the best way of determining the graph is to create a table with two columns. Label one column x, the other y.Then assign a value to x. Write it down under the x column.Solve for y. Write the result under the y column.Your x and y values would be your first point in the cartesian plane.You only need to do this with two x values to determine a straight line.However, plotting more points helps to ensure us that we are on the right track.When x=1, y=-(1)+1=0 ... our first point is (1,0)When x=2, y=-(2)+1=-1 ... our second point is (2,-1)When x=3, y=-(3)+1=-2 ... our third point is (3,-2)Let's try a couple of negative x values:When x=-1, y=-(-1)+1=1+1=2 ... our fourth point is (-1,2)When x=-2, y=-(-2)+1=2+1=3 ... our fifth point is (-2,3)If we plot all point in the cartesian plane, our graph would look like the one below.Follow the line and the (x,y) values... they are all represented in this graph. You can put this solution on YOUR website!

