Malik asked his teacher if there was a way to check his answer after writing equivalent expressions. what should be his teacher’s response?
choose a number to substitute for the variable. find the value of each expression. if the values are even, the expressions are equivalent.
substitute a number for the variable. if the simplified expressions have the same value, the expressions are equivalent.
multiply each expression by the same number. if the expressions are equal, the expressions are equivalent.
add a number to each expression. if the simplified expressions are equal, the expressions are equivalent.

first option

a function is a relation in which an input is paired with exactly one output.

so, let's find the right answer.

in our first option, our inputs are january, february, and march. the outputs are 30, 28, and 25. each input has it's own output. this is correct!

our second option we know is incorrect, because ms. valverade has two outputs, dogs and cats. this is not a function.

our third option is incorrect as well. the yellow square has two ouputs, the square and the triangle.

lastly, in our fourth option, we see the number 7 two times with a different output. therefore, this is not a function.

remember: each input must be paired with only one output!

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

21

step-by-step explanation:

the olimpics is not going to wokk out

step-by-step explanation: