Graph to estimate the solution of the linear system. Then check your solution algebraically using substitution.
Example 4 x + y = 4
2x + y = 5
please graph this for me!

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

3+x

step-by-step explanation:

~dasgupta/mathbook/append17dec2k8.pdf