id: 05852083
dt: j
an: 2011b.00736
au: Cargenter, James E.; Gratzer, William
ti: A classroom note on the vees of a function.
so: Math. Comput. Educ. 44, No. 1, 48-52 (2010).
py: 2010
pu: MATYC Journal, Old Bethpage, NY
la: EN
cc: H33
ut: solving equations; linear equations; quadratic equations
ci:
li:
ab: Summary: By using a uniform formulaic approach for both linear and
quadratic equations, activities such as removing parentheses, adding or
subtracting the same quantity to both sides of the equation in
sufficient steps to bring all “$x$-terms" to one side, and
simplifying, all have a common purpose: Find a function equal to a
constant. The task becomes to determine the choice of $x$ for which the
value of a function is equal to that constant, whether it is zero or
not. We call these values of $x$ the “Vees" of the function. The
approaches and formulas for both linear and quadratic equations are
discussed.
rv: