Graphing
One, none, or infinite solutions
y = 3x -2 and y = 1/2x + 8
One (intersect in one place)
When solving for substitution, what would be the first step here?
Equation 1: y = 2x + 1 and Equation 2: y + 3x = 7
Plug Equation 1 into the y in Equation 2
What is Mr. Bunn's favorite Christmas movie?
The Grinch, Home Alone, or Elf
Home Alone
What's the first step using elimination here;
3y = 2x - 4
2y = -7 + -2x
Reorder the equations so the y's, x's, and constants line up
One, none, or infinite solutions
y = 3x - 2 and y = 3x - 2
Infinite (same line)
x = 1
What is Mrs. Shannon's favorite Christmas movie?
Polar Express, Santa Clause, or Elf
Elf
Solve for y by eliminating x:
2y = 3x + 8
y = -3x + 1
y = 3
One, none, or infinite solutions
y = -5x + 3 and y = -5x
None (parallel lines)
Solve for y. y = 2x + 1 and y + 3x = 6
y = 3
What is Mr. Bunn's favorite Christmas song? All I Want for Christmas is You, Jingle Bell Rock, Let it Snow Let it Snow Let it Snow
Mariah Carey's All I Want for Christmas is You
Solve for x by eliminating y:
x + 4y = -6
3x - 4y = 2
x = -1