Notes | 131
- Combining functions also includes composition of functions.
- In Algebra II, tasks may involve polynomial, exponential, logarithmic, and trigonometric
functions. Tasks may involve recognizing even and odd functions. - In Algebra II, tasks will include solving multi-step problems by constructing linear and
exponential functions. - Students learn terminology that logarithm without a base specified is base 10 and that
natural logarithm always refers to base e. - Tasks have a real-world context. In Algebra II, tasks include exponential functions with
domains not in the integers.
Chapter 6
- This standard is assessed in Algebra II by ensuring that some modeling tasks (involving
Algebra II content or securely held content from previous grades and courses) require
the student to create a quantity of interest in the situation being described (i.e., this is
not provided in the task). For example, in a situation involving periodic phenomena, the
student might autonomously decide that amplitude is a key variable in a situation and
then choose to work with peak amplitude. - In Algebra II, tasks are limited to polynomial, rational, or exponential expressions.
Examples: see xy^44 - as ()xy^22 - ()^22 , thus recognizing it as a difference of squares that
can be factored as ()xy^22 -+()xy^22. In the equation xx^22 ++ 21 +=y 9 , see an opportunity
to rewrite the first three terms as ()x+ 12 , thus recognizing the equation of a circle with
radius 3 and center (,- 10 ). See ()()xx
2
2
4
3
+
+ as
(( ))
()
x
x
2
2
31
3
++
+ , thus recognizing an opportunity to write it
as 1 +()()x (^21) + 3.
- Tasks include problems that involve interpreting the remainder theorem from graphs and
in problems that require long division. - In Algebra II, tasks include quadratic, cubic, and quartic polynomials and polynomials for
which factors are not provided. For example, find the zeros of ()xx^22 -+ 11 (). - Tasks include rewriting rational expressions that are in the form of a complex fraction.
- In Algebra II, tasks are limited to simple rational or radical equations.
- In Algebra II, in the case of equations having roots with nonzero imaginary parts,
students write the solutions as ab± i, where a and b are real numbers. - In Algebra II, tasks are limited to 3 ́ 3 systems.
- This standard includes expressions where either base or exponent may contain
variables. - This standard is assessed in Algebra II by ensuring that some modeling tasks (involving
Algebra II content or securely held content from previous grades and courses) require
students to create a quantity of interest in the situation being described (i.e., this is not
provided in the task). For example, in a situation involving periodic phenomena, students
might autonomously decide that amplitude is a key variable in a situation and then
choose to work with peak amplitude.