Answer:
1. True 2. True
Step-by-step explanation:
1. all horizontal lines represent a function.
2. The equation y=2x+1 represents a function.
Answer:
40/42 = 20/21
Step-by-step explanation:
3(3b+2)=-30 perform indicated multiplication on left side...
9b+6=-30 subtract 6 from both sides
9b=-36 divide both sides by 9
b=-4