Question

Which graph represents the piecewise function?

y={x+3   if  x<02x      if  x≥0

A. https://static.k12.com/nextgen_media/assets/8112451-NG_AL1_Quiz_4_11_Pool2_Var1_B.jpg

B. https://static.k12.com/nextgen_media/assets/8112450-NG_AL1_Quiz_4_11_Pool2_Var1_A.jpg

C. https://static.k12.com/nextgen_media/assets/8112453-NG_AL1_Quiz_4_11_Pool2_Var1_D.jpg

D. https://static.k12.com/nextgen_media/assets/8112452-NG_AL1_Quiz_4_11_Pool2_Var1_C.jpg

Answer 1

hint: what is the slope and y-intercept of y = x + 3?

Answer 2

The slope is 1

the y-intercept is 3

Answer 3

good job

let's try putting this on a graph

Answer 4

for < and > we use an open circle
for ≥and ≤ we use a closed circle

Answer 5

so if we have x+3   if  x<0

do we use an open circle or closed circle?

Answer 6

open

Answer 7

good

Answer 8

so, what about y = 2x? what are its slope and y intercept?

Answer 9

slope: 2

y-intercept: 0

Answer 10

good, let's try putting that on the graph

Answer 11

which answer choice best matches what I have drawn?

Answer 12

D.

Answer 13

OR C ?

Answer 14

good job

Answer 15

D

Answer 16

be careful with open/closed circles