Teresa and susan have been given with four cards with four different functions on them.
function a: f(x) = 3^x +1

function b: f(x) = 3(x+100)

function c: f(x) = 30x+2

function d: f(x) = 0.3^x + 1000
teresa thinks that function d always exceed the other functions. susan doesn't think that teresa statement is true. which values of x disprove her claim? explain.

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb