If y is 1.5 when x is 3, and y varies directly with x, find y when x is 9.
0.5 4.5 9.5 18

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

Is there an x intercept in the equation 60*1.15^x

Select the correct answer from each drop-down menu. consider the following polynomials equations. 3x^2(x-1) and -3x^3+ 4x^2-2x+1 perform each operation and determine if the result is a polynomial. is the result of a + b a polynomial? yes or no is the result of a - b a polynomial? yes or no is the result of a · b a polynomial? yes or no