Is the mapping a function or not a function? explain. a. yes. because every x-value is assigned to only one y - value. b. yes, because every y- value is a sign to only one x- value. c. no, because the x -value to it’s a sign to y-value 7. d. no, because functions cannot have negative numbers. ? !

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota