Equivalent division problem for 5÷1/3 by multiplying both the dividend and divisor by 3 then find the quotient

Which of the following is true for the relation f(x)=2x^2+1

If you double the input of a function and it results in half the output, and if you triple the input and it results in a third of the output, what can be guessed about the function? check all that apply.

Using the figure below, select the two pairs of alternate interior angles.a: point 1 and point 4 b : point 2 and point 3 c: point 6 and point 6d: point 5 and point 7