Answer Key — HSA.REI.D.11

For parents and tutors

Do not share with students before practice tests.

Practice Problems — Sets 1–10

| Set | Guidance | | --- | --- | | Set 1 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 2 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 3 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 4 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 5 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 6 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 7 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 8 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 9 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 10 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. |

Practice Problems — Sets 11–20

| Set | Guidance | | --- | --- | | Set 11 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 12 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 13 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 14 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 15 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 16 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 17 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 18 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 19 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. | | Set 20 | Explain why the x-coordinates of the points where the graphs of the e… — verify written work and accept reasonable drawings. |

Review tiers 1–10

Checklists are parent-judged.
Written items: verify against practice set patterns.
Standard text: Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.*

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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