Lesson 1-2 Quiz - Algebraic Expressions

Translate the following verbal phrase into an algebraic expression: 'The sum of 7 and a number.'

• 7n

• 7 + x

• 7x

• 7 x n

Translate the following verbal phrase into an algebraic expression: 'Three times a number plus 7.'

• 3x + 7

• 3x - 7

• 7x + 3

4 less than a number 

• 4/n
• 4+n
• n/4
• n-4

2x + 3 + x²; for x = 4

• 17
• 27
• 19
• 25

8y + 12 - 2z
for y = 4 and z = 2

• 40
• 20
• 84
• 34

Evaluate when a = 15:
2(a - 5) + 2

• 22
• 27
• 14
• 7

The difference of 3x and 11. Then evaluate if x = 12.

• 11 - 3x; -25

• 3x - 11; 25

• 11 - 3x; 25

• 3x - 11; -25

9 times the difference of w and 7. Then evaluate if w = 10.

• 9(w - 7); 27

• 9(7 - w); 27

• 9(7 - w); -27

• 9(w - 7); -27