Precalculus review

Find the domain of (5x)/(x^2-16). (1.1)

What is the definition of a function. (1.1)

• A function is a type of fruit
• A function is a mathematical equation
• A function is a random assortment of numbers
• A function is a relation that

  associates with each input exactly one output.

Tags

CCSS.8.F.A.1

What is the domain?

• x ≠ 3

• x ≠ -1

• x ≠ 3, -1

• x ≠ 3, 1

What is the difference between an even and an odd function? (1.3)

• Even functions are symmetric with respect to the y-axis, odd functions are symmetric with respect to the origin.
• Even functions have a period of 2π, odd functions have a period of π.
• Even functions have a positive leading coefficient, odd functions have a negative leading coefficient.
• Even functions are symmetric with respect to the x-axis, odd functions are symmetric with respect to the y-axis.

Tags

CCSS.HSF.BF.B.3

What is the difference between a local and an absolute maximum?

• The difference between a local and an absolute maximum is that a local maximum is a point where the function is greater than or equal to all nearby points, while an absolute maximum is the highest point in the entire function domain.
• A local maximum is the highest point in the entire function domain
• An absolute maximum is a point where the function is greater than or equal to all nearby points
• A local maximum is always higher than an absolute maximum

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

What is the definition of a secant line?

• A secant line is a curved line that intersects a circle at two points.
• A secant line is a line that never intersects a curve.
• A secant line is a straight line that intersects a curve at two or more points.
• A secant line is a line that intersects a curve at only one point.

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