Does this graph represent a function? why or why not?

a. yes, because it passes the vertical line test.
b. no, because it is not a straight line.
c. no, because it fails the vertical line test.
d. yes, because it has two straight lines.

Which graph has figures that can undergo a similarity transformation to justify that they are similar? (obviously not the third one)

The temperature of a chemical solution is originally 21 ? c . a chemist heats the solution at a constant rate, and the temperature of the solution 75 ? c after 1212 12 minutes of heating. the temperature, tt t , of the solution in ? c is a function of x , the heating time in minutes. write the function's formula.

Will mark brainliest, , and rate to the best ! wait for pics