Question

HELP PLEASE!!!!!!!!!! O.o

Solve the following system of equations graphically.

y = 2x - 3
x + y = 3

What is the solution set?
A. {(2, 1)}
B. {(1, 2)}
C. {(-1, -2)}
D. {(-2, -1)}

Answer 1

it is set as, for a substitution: Substitute what the y is equal to in a first equation, INTO a second equation (for y).
(read this sentence carefully)

Answer 2

You can use a graphing calculator like this

https://www.desmos.com/calculator/

if you don't have a graphing calculator

Answer 3

graph each equation in each line and the point of intersection is your solution

Answer 4

oh, graphically! I read algebraically for some reason-:(

Answer 5

btw, I also use desmos:) ....

Answer 6

graph each line on the same grid and look where they intersect

Answer 7

@Krystin_56 do you know how to graph without electronics?

Answer 8

sorta @triciaal

Answer 9

write equation in the form y = mx + b
to get a line you need 2 points
the easiest to use when x = 0 what is y and when y = 0 what is x
join the 2 points
do the same for the other line
solution is the intersection of the 2 lines

Answer 10

y = 2x - 3 when x = 0 y = -3 when y = 0 2x -3 = 0 so x = 3/2 ((0, -3) and (3/2, 0)
x + y = 3 when x = 0 y = 3 when y = 0 x = 3 (0, 3) and (3,0)