Find the vertex and y-intercept of the quadratic function.
y= 3x^2 - 12x + 40

What is the value of y? round to the nearest tenth

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)