standard_description: 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.
problem_activity: Problem 1
Jenny buys 2 feet of string. If this is one-third the amount she needs to make a bracelet, how many feet will she need?
a.   Draw a diagram to represent the problem.
b.   Write an expression to represent the problem.
c.   Find how many feet of string Jenny needs.
Problem 2
a.   Match each division expression (cut out from
Template: Fraction Division Sort
) with a situation (cut out from
Template: Fraction Division Sort
). Some expressions do not have a matching situation.
b.   Answer each question. Be prepared to share your reasoning.
Problem 3
a.   Write a story context that can be solved using the expression
$${2\div{1\over4}}$$
.
b.   Write a story context that can be solved using the expression
$${{1\over3}\div4}$$
.


aligns: no