Day 085Quiz 2
I can apply the skills taught so far, show my reasoning, and check my answers.
Show what you know
Questions 1–1 review Unit 5 (20%). The remaining 4 questions assess the current unit. Show your work, simplify exact answers, label units, and explain when asked.
Quiz
Begin with the review questions, then continue through the current-unit questions.
- Previous unit review
Find |-15|. Explain the distance meaning.
- Current unit
For 5x + 2y + 2, list terms, coefficients, and the constant.
- Current unit
Write an expression for 5 times the sum of x and 5.
- Current unit
A ticket costs $4. A group buys n tickets and pays a single $3 booking fee. Define n and write the total-cost expression. Evaluate it for n = 6.
- Current unit
A rectangle has length x + 4 and width 4. Use A = lw to write its area expression and find A when x = 6.
Answers and reasoning
Reveal the teacher answer key
- 15
-15 is 15 units from 0; distance is nonnegative.
- Terms 5x, 2y, 2; coefficients 5, 2; constant 2
Terms are separated by addition; coefficients multiply variables.
- 5(x + 5)
Group the sum before multiplying.
- n = ticket count; 4n + 3; $27
Ticket cost is 4 × n; add the one-time fee 3.
- A = 4(x + 4); 40 square units
Substitute x = 6: 4(6 + 4) = 40.