Algebra Bell Ringer 11/15

Front

What is an x-intercept?

Back

An x-intercept is the point where a graph crosses the x-axis, meaning the value of y is zero at that point.

Front

How do you find the sum of x-intercepts from a graph?

Back

Identify the x-intercepts on the graph, then add their x-coordinates together.

Tags

CCSS.HSF-IF.C.7A

Front

What does 'twice the difference of six and a number' mean in algebraic terms?

Back

Tags

CCSS.HSA-SSE.A.1A

Front

What is an explicit formula in sequences?

Back

An explicit formula defines the nth term of a sequence directly in terms of n.

Tags

CCSS.HSF.BF.A.2

Front

What is a recursive formula in sequences?

Back

A recursive formula defines each term of a sequence based on the previous term(s).

Tags

CCSS.HSF.BF.A.2

Front

How do you evaluate a function at a negative integer, such as f(-2)?

Back

Substitute -2 into the function's formula and simplify to find the value.

Tags

CCSS.HSF.IF.A.2

Front

What is the rate of change in a linear function?

Back

The rate of change is the ratio of the change in y to the change in x, often represented as slope.

Tags

CCSS.HSF-LE.A.1B

Front

How do you identify if a sequence is recursive or explicit?

Back

A sequence is recursive if it defines terms based on previous terms; it is explicit if it defines terms directly using n.

Tags

CCSS.HSF.BF.A.2

Front

What is the first term of the sequence defined by f(n) = f(n-1) + 2 if f(2) = 8?

Back

The first four terms are 6, 8, 10, 12, starting from f(1) = 6.

Tags

CCSS.HSF.IF.A.3

Front

What is the formula for finding the nth term of a geometric sequence?

Back

Tags

CCSS.HSF.BF.A.2