Flashcards
MTH107-2
Flashcards do conjunto (30)
- 1Quadratic function
- 2Quadratic Equation
- 3Quadratic Formula
- 4Quadratic Equation Vertex Form
- 5Find "x" of Vertex
- 6Y-int of Quadratic EquationThe "c" of the
ax^2 + bx + c
(0, c) - 7quadratic equation that opens downMake the "a" = "-a" in
ax^2 + bx + c
(make the "a" negative) - 8quadratic equation that opens upThe "a" is positive
ax^2 + bx + c - 9Can a be equal to "0" in a quadratic function?NO, then the function is not quadratic. It is linear.
- 10a > 0Opens up
- 11a < 0opens down
- 12a = 0not quadriatic
- 13does the equation have to have an x or y intercept?NOPE
- 14Axis of Symmetrythe "x" of the vertex point
- 15Square root Method of solving Quad Equation
- 16Factoring Method of solving Quad Equation
- 17Solve using substitution
- 18solutions to quadratic equations can also be called"zeros"
- 19if the "x" = a neg square root while solving a quad equationthen no x-int
- 20—Equals a Negative #
- 21—Equals a Positive #
- 22Quadratic inequality 1
- 23Quadratic inequality testing
- 24Quadratic inequality testing, how?Find the "zeros" or x-itns then find solution
- 25Quadratic inequality solutionsExample:
-2 < x < 5
be careful for greater than or equal to - 26(1,2) What do parenthesis mean for intervals?point IS NOT included
#7 on pre test - 27[1,2] What do brackets mean for intervals?point IS included
- 28Rule for absolute value inequalitiesPlug in the answer to check if it makes sense in the equation
#10 on pre test - 29how to use exponents with fractions and multiplication
- 30you have 96ft of fence to to enclose a rectangular region.Find the dimensions to maximize the enclosed area.Area = L * w | L=x, w=y
rectangle has 4 sides: 2x & 2y
therefore: 2x+2y = 96
simplified: y = 48-x
back to area(L*w) x(48-x) = -x^2-48x
Use Vertex Equation for "x"
once you have "x": Get "y"
Informações
- Descrição
- FlashCards sobre MTH107-2, criado por Bob Harold em 28-09-2019.
- Criado por
- Bob Harold
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- Avaliação