Is this mapping a function or not a function? explain.

yes, because the x-value 6 has two y-values paired with it.

no, because the x-value 6 has two y-values paired with it.

yes, because each x-value has only one value paired with it.

no, because each x-value has only one y-value paired with it.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

What is always true about a positive integer raised to a negative odd power?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?