9. Alicia and Kyle each are trying to find the solution to the system below. Alicia started by multiplying the top equation by -2.
Kyle started by manipulating the top equation to isolate y.
a. Why did Alicia multiply by-2?

b. Why did Kyle isolate y?

c. Explain why they are both
correct.

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 is:

1.75 pounds

x^6

step-by-step explanation:

this is correct because:

x-6=0

0*x=0

so

x^6

2/3

step-by-step explanation:

the slope of a line is equal to the rise/run. in this case the line rises 2 units for every +3 units it moves