A2: Unit 2 Section 1 Notes

Yes!

No!

I Don't Know

(1, 3), (2, 7), (3, 8), (4, 11)

(2, 3), (4, 9), (3, 8), (4, 15)

(1, 2), (3, 5), (6, 9), (7, 11)

(-9, 4), (-6, 3), (-2, 8), (0, 21)

$\left\{-8,\ 2,\ 7.9\right\}$

$\left\{-3,\ 6,\ 11,\ 21\right\}$

$-8<x<9$

$-3<y<21$

{(0,2), (0,4), (0,5), (0,6)}

{(1,3), (4,3), (8,3), (3,1)}

{(5,-1), (6,3), (1,2), (7,-8)}

{(1,2), (3,4), (-1,-2), (1,5)}

a function but not a one-to-one function.

a one-to-one function.

not a function.

a function but not a one-to-one function.

a one-to-one function.

not a function

a function but not a one-to-one function.

a one-to-one function.

not a function

Discrete

Continuous

Discrete

Continuous

Discrete

Continuous