Linear Equation and Inequality

When do we use a shaded circle in graphing an inequality?

• If the relational symbol used is an = symbol

• If the relational symbol used is a < or > symbol

• If the relational symbol used is an ≥ or ≤ symbol

• If the relational symbol used is an ∞ symbol

4 = 2(x + 3)

• 1/2

• 7/2

• -1

• 5

Which equation has x=9 as a solution

• 4 + x = 12

• 5x = 45

• 2x = 20

• x + 7 = 26

Solve the linear inequality.

• x > 1

• x > 5

• x > -1

• x < -1

Solve the linear inequality.

• x > -2

• x < -2

• x < 2

• x > 2

What is the next step to solve the equation 3x - 5 = 7?

• Add 3x both sides of the equation

• Subtract 7 from both sides of the equation.

• Add 5 both sides of the equation

• Subtract 5 from both sides of the equation.

What is the solution to 3x + 6 = 10 + 3x + 4x?

• 1

• -1

• 4

• -4

Solve the inequality: 3x + 5 > 17

• x = 4

• x > 4

• x > 17

• x < 4

Solve the inequality: 4a + 7 ≥ 31

• a > 6

• a ≤ 6

• a ≥ 6

• a = 6

Solve the inequality: 2c + 9 < 25

• c < 8

• c = 8

• c > 8

• c < 5