If f(x) = 5x, what is y(x)?

Can (2,3 and square root 10) be sides ona right triangle?

Pick the expression that matches this description: a polynomial of the 5th degree with a leading coefficient of 7 and a constant term of 6 (choice a) 7x^5+2x^2+6 (choice b) 7x^6−6x^4+5 (choice c) 6x^7−x^5+5 (choice d) 6x^5+x^4+7

Which number produces a rationale number when multiplied by 1/5