Solving systems by graphing and substitution

Front

The solution (x, y) to a system of equations is the point where they...?

Back

Intersect

Front

These two lines intersect at _____? Options: (4, -2), (4, 2), (-2, 4), No solution

Back

(4, -2)

Front

Solve this system of equations by graphing: y = 4x - 2 y = -x + 3

Back

(1,2)

Front

What is the solution to this system? Options: (-2, -2), (2, -2), (-2,2), (2, 2)

Back

(-2,2)

Front

The first step in solving using the substitution method is __________.

Back

get either variable by itself

Front

Which variable should you isolate first in the system? 3x + 2y = 10 x - 5y = 18

Back

The x in the second equation

Front

What is the correct first step in solving this system by substitution?
x = 2y +11
-7x -2y = -13
Options: -7(2y+11) - 2y = -13, -7x -2(2y +11) = -13, 2y+11-2y = -13

Back

-7(2y+11) - 2y = -13

Front

Solve with substitution x = -3y - 8 x - 2y = -3

Back

(-5,-1)

Front

Solve the system by substitution: 3x - y = 4, x + 2y = 6

Back

(2, 2)

Front

What is the best method to use for solving the system of equations? x = 6y − 11 −2x − 3y = −7

Back

Substitution because a variable is isolated (solved for)