Unit 1- LT 4&5

Question 1

quadratic function

Answer 1

• xsquared
• u shape (parabola)
• square inputs to get outputs

Question 2

absolute value

Answer 2

• v shaped parabola
• each input is made positive for output
• |x|

Question 3

square root function

Answer 3

• inputs that are easy to square root outputs

- half a parabola on its side

Question 4

reciprocal function

Answer 4

x

• approaches horizontal and vertical asymptotes
• to find the reciprocal, turn number into fraction and divide ex. 2 is really 1/2

Question 5

“a” (transformations)

Answer 5

vertical stretch or compression

• if greater than 1, stretch (multiply)
• if less than 1, compression (divide)
• negative gives reflection in x axis

Question 6

“k” (transformations)

Answer 6

horizontal stretch/compression

• negatives give reflection in y axis
• less than 1 is a stretch (divide)
• greater than 1 is a compression (multiply)

Question 7

“d” (transformations)

Answer 7

horizontal shift

• negative in function is right on graph
• positive in function is left on graph

Question 8

“c” (transformations)

Answer 8

vertical shift

• positive is up
• negative is down