Math Reminder Flashcards

50 terms · For Smarty's class c:

> or <

> or <

≤ or ≥

≤ or ≥

≤ or <

≥ or >

Function

No repeated x values

When solving inequalities when do you flip the inequality symbol?

When you multiply or divide by a negative.

y = x^2 it is a u shape

Linear Parent Function

y = x it is a straight line

Absolute Value Parent Function

y = abs(x) it is a v shape

Dependent statements

dependent depends on independent

Function statements

dependent is a function of independent

Independent/Dependent on a table

independent on the left and dependent on the right

Independent/Dependent on a coordinate plane

independent on the x-axis and dependent on the y - axis

Vertex

the minimum or maximum of a quadratic

What are the other words for the solutions of a quadratic?

roots, zeros, x-intercepts

What is the equation for the axis of symmetry?

x = # (x-value of the vertex)

no real roots

zero

What is the slope of x = 3?

undefined or no slope

From a graph, how do you find slope?

pick two points and count rise over run

Positive Slope

upward to the right

Negative Slope

downward to the right

x = #

y = #

the effect

Independent

the cause; it is ―in‖ the equation

subtract

multiply

nothing

(x-5)(x-5)

How do you write domain?

left to right # ≤ x ≤ #

How do you write range?

bottom to top # ≤ y ≤ #

f(x) = y

means x = 2

means y = 5

Parallel Lines

have the same slope different y-intercept

Perpendicular Lines

have opposite reciprocal slopes (i.e. m = 2/3 and perpendicular m = -3/2)

(#, 0)

(0, #)

How can you find the mean, mode, median, and range on the calculator?

Stat edit, Start  enter

Average

Most Often

Biggest-Smallest

Median

Middle Number (they have to be in order)

3%  0.03

Word problem vocabulary:

less than (-), is (=), product(•), quotient (÷)

2nd Window