Skills · Functions · Exponential Functions
Writing an exponential from a table or graph
Printable practice with an answer key the engine computes, at three levels, in as many versions as you need.
Problem types
- a table from x = 0: x = 0, 1, 2, 3 with y = 3, 6, 12, 24
- a table from x = 1: x = 1, 2, 3, 4 with y = 6, 12, 24, 48
- a graph through three points: (0, 3), (1, 6) and (2, 12) on a curve
- decay, a fraction base: x = 0, 1, 2, 3 with y = 16, 8, 4, 2
Sample Sheet · Level 1
x 0 1 2 3 y 9 18 36 72 x 0 1 2 3 y 7 21 63 189 x 0 1 2 3 y 5 15 45 135 x 0 1 2 3 y 7 14 28 56 x 0 1 2 3 y 3 6 12 24 x 0 1 2 3 y 8 16 32 64 x 0 1 2 3 y 6 18 54 162 x 0 1 2 3 y 9 27 81 243
Answer key
- y = 9(2)x
- y = 7(3)x
- y = 5(3)x
- y = 7(2)x
- y = 3(2)x
- y = 8(2)x
- y = 6(3)x
- y = 9(3)x
Sample Sheet · Level 3
x 0 1 2 3 y 80 40 20 10 x 1 2 3 4 y 8 16 32 64 x 1 2 3 4 y 18 54 162 486 x 0 1 2 3 y 88 44 22 11 x 0 1 2 3 y 2 8 32 128 x 0 1 2 3 y 7 21 63 189
Answer key
- y = 80(12)x
- y = 4(2)x
- y = 6(3)x
- y = 3(2)x
- y = 88(12)x
- y = 2(4)x
- y = 7(3)x
- y = 5(2)x
Make your own
Pick the count, the level and the version, and print it with work space and the key on its own page. The same skill also makes an I Do, We Do, You Do lesson, a Mosaic, a Decoder and more.