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Section 1

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quadratic inequality in two variables

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Algebra Math

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Mar 1, 2020

Cards (18)

Section 1

(18 cards)

quadratic inequality in two variables

Front

an inequality that can be written in the form ax²+bx+c<0, ax²+bc+c≤0, ax²+bx+c>0, or ax²+bx+c≥0.

Back

Completing the Square Method

Front

divide b by 2 and square it to find c, and then find the root

Back

quadratic regression

Front

used to model quadratic data

Back

minimum value

Front

The lowest point of a parabola (when a>0)

Back

axis of symmetry

Front

the middle of a parabola x=-b/2a

Back

maximum value

Front

The highest point of a parabola ( when a<0)

Back

vertex form

Front

f(x)=a(x-h)^2+k

Back

Parabola

Front

The shape of the graph of a quadratic function (f(x)=x squared

Back

discriminate

Front

b^2-4ac

Back

imaginary unit

Front

i, or the principal square root of -1

Back

complex conjugates

Front

(a+bi) and (a-bi)

Back

complex plane

Front

a set of coordinate axes in which the horizontal axis is the real axis and the vertical axis is the imaginary axis; used to graph complex numbers

Back

zero of a function

Front

a value of x that makes the function's value zero (find + plot vertex)

Back

quadratic model

Front

used to model data

Back

complex number

Front

a number of the form a+bi where a and b are real numbers and i is the square root of -1

Back

quadratic function

Front

A function that can be written in the form f(x) = ax2+bx+c, where a,b,and c are real numbers and a ≠ 0

Back

standard form

Front

ax^2+bx+c

Back

vertex

Front

The highest or lowest point on the parabola

Back