Chapter 6 Review Game

Graphing

100

[y = ((-1 / 3) * x) + 4]

[y = ((2 / 9) * x) - 1]

[(9,1)]

200

[y = ((7 / 4) * x) - 6]

[y = ((1 / 8) * x) + 7]

[(8, 8)]

300

[y = (-1 * x) - 7]

[y = (-1 * x) - 4]

No Solution

400

[y = (2 * x) - 9]

[y = ((-2 / 5) * x) + 3]

[(5,1)]

500

[11x + y = -9]

[x - y = -3]

[(-1, 2)]

Substitution

100

[y = -5x + 8]

[y = 8]

[(0, 8)]

200

[y = -x + 9]

[y = 3x + 5]

[(1, 8)]

300

[y = 2x - 20]

[y = x - 14]

[(6,-8)]

400

[y = -5x + 3]

[4x - 5y = -15]

[(0,3)]

500

[x + 4y = -3]

[-3x - 7y = 9]

[(-3, 0)]

Elimination

100

[7x + 5y = -1]

[6x - 5y = 27]

[(2, -3)]

200

[x - y = -4]

[-2x + 2y = 8]

Infinite Solutions

300

[-10x - 6y = -6]

[-5x + 2y = -23]

[(3, -4)]

400

Daily Double

[3x + 4y = 15]

[5x - 21y = 33]

[(447/83 , -24/83)]

500

[3x + 4y - 2z = -14]

[-3x - 2y - 2z = 22]

[2x - 3y + 5z = -7]

[(0, -6, -5)]

Gaussian-Jordan Elimination

100

[-10x - 2y = 0]

[10x + y = -5]

[(-1, 5)]

200

[2x - 2y = 12]

[2x - 3y = 11]

[(7, 1)]

300

[3x - 4y = -7]

[4x - 4y = -4]

[(3, 4)]

400

[9x - 4y = 30]

[5x - 10y = -30]

[(6, 6)]

500

[-5r - 6s - 3t = 7]

[-4r - 3s + 5t = -2]

[5r + 4s - 2t = -5]

[(-5, 4, -2)]

Cramer's Rule

100

[-3x + 2y = -14]

[-6x - 4y = -20]

[(4, -1)]

200

[8x - 4y = -24]

[4x + y = -18]

[(-4, -2)]

300

[-7x + 7y = -14]

[-9x - 6y = -18]

[(2,0)]

400

[-21x - 15y = -3]

[28x + 20y = 4]

Infinite Solutions

500

[-4x + 5y - z = 22]

[3x - 6y - z = -9]

[-x + y - 3z = 14]

[(-6, -1, -3)]