Answer Key — HSF.BF.B.3
For parents and tutors
Do not share with students before practice tests.
Practice Problems — Sets 1–10
| Set | Guidance | | --- | --- | | Set 1 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 2 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 3 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 4 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 5 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 6 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 7 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 8 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 9 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 10 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. |
Practice Problems — Sets 11–20
| Set | Guidance | | --- | --- | | Set 11 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 12 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 13 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 14 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 15 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 16 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 17 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 18 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 19 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. | | Set 20 | Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x… — verify written work and accept reasonable drawings. |
Review tiers 1–10
- Checklists are parent-judged.
- Written items: verify against practice set patterns.
- Standard text: Identify the effect on the graph of replacing f(x) by f(x) + k, k f(x), f(kx), and f(x + k) for specific values of k (both positive and negative); find the value of k given the graphs. Experiment with cases and illustrate an explanation of the effects on the graph using technology. Include recognizing even and odd functions from their graphs and algebraic expressions for them.
Practice test scoring
| Tier | Pass guidance | | --- | --- | | 1–3 | Most oral tasks smooth; majority of written correct | | 4–6 | 7/10+ total with clear understanding | | 7–8 | 9/12+ with explanations | | 9–10 | Near-perfect; ready to move on |
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