Algebraic expressions (Math 1)

High School Math 1 · Unit 2 · algebraic-expressions-m1

algebraic-expressions-m1

Name ______________________________Date ______________

1.
In the expression $7x^{2} - 4x + 9$ , what is the coefficient of $x$ ?
Answer: ______________
2.
Simplify $2(3x - 4) - 5x$ .
Answer: ______________
3.
Evaluate $4x^{2} - 6x + 1$ when $x = \dfrac{1}{2}$ .
Answer: ______________
4.
Which expression means “twice the sum of a number $x$ and $3$ , decreased by $5$ ”?
1. (A)
  $2x + 3 - 5$
2. (B)
  $2(x - 5) + 3$
3. (C)
  $2(x + 3) - 5$
4. (D)
  $5 - 2(x + 3)$
5.
A rectangular garden has width $w$ feet. Its length is $4$ feet more than three times its width. Which expression gives the perimeter of the garden, in feet?
1. (A)
  $4w + 4$
2. (B)
  $8w + 8$
3. (C)
  $6w + 8$
4. (D)
  $3w^{2} + 4w$