2.5 Bell work A2

An absolute value function is a function that contains an algebraic expression with

• absolute value symbols

• parenthesis

• fractions

• roots

The domain of an absolute value graph is

• all real numbers

• $\left(0,\ \infty\right)$

• $\left[0,\ \infty\right)$

• positive numbers
  

The vertex of an absolute value graph is

• the corner point

• always the lowest point

• always the highest point

• the left-most point

To translate a graph vertically, add or subtract outside the absolute value sign. g(x) = f(x) + k or g(x) = f(x) -k

• true

• false

To translate a graph horizontally, add or subtract outside the absolute value signs g(x) = f(x) - k

• true

• false

|x - 2| = 12

• x =14

• x = -10

• x = 14 and x = -10

• none of these

How many x-intercepts does the graph of the equation below have?

y = |x - 2| +12

• 0

• 1

• 2

• 3

What is the y-intercept of

y = 4|x - 2| - 3

• (0, 6)

• (0, 5)

• (0, 11)

How confident are you at this topic?

• I could teach this

• I'm pretty good

• I need practice

• I need help (come to office hours =)