Algebra 2 B

Solve the system by substitution. (U1) 2x + y = -11 3x - 4y = 11

(-3, -5)

Solve the system using elimination. (U1) 2x + 6y = -12 5x - 5y = 10

(0, -2)

Solve the system by graphing. (U1) -3x - y = - 10 4x - 4y = 8

(3,1)

What is the value of the expression when c = -5 and d = 2? (U1) 45c + 28d

-169

Solve the equation. (U1) 3y + 20 = 3 + 2y

-17

-5y - 9 = -(y - 1) (U1)

-2 1/2

Which expression gives the solutions of -5 + 2x^2 = -6x? (U1)

-6 +/- sqrt[36 - (4)(2)(-5)] ////////////4////////////////

Solve by factoring. (U1) n^2 + 2n - 24 = 0

-6, 4

Solve. (U1) x^2 - 121 = 0

11, -11

How many real solutions are there for 5x^2 + 7x + 2? (U1)

2

Is the following inequality always, sometimes, or never true? (U1) 2(8x - 4) - 2x <= 14x + 12

always true

Which graph represents the function y = 2x^2 - 5? (U1)

maximum (0, 5)

Which system of inequalities is represented on this graph? (U1)

y < x - 1 y <= -2x + 2