Using technology we found the equation of the line to be y=-2x + 25. Using the given equation predict the value of a car that is 3 and a half years old.

A car that is 3 and a half years old would cost $18,000

Step-by-step explanation:

Using the given equation, , we replace 'x' with '3.5' and solve for 'y'.

Dollar values on the graph are expressed in thousands. Thus, we multiply 18 by 1,000 to get $18,000

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!

details

step-by-step explanation: