Which is true for the following equation? f(x) = −4x2 + 6x − 7 options: The graph opens up and the vertex is a maximum. The graph opens up and the vertex is a minimum. The graph opens down and the vertex is a maximum. The graph opens down and the vertex is a minimum.

The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is

When the ball has traveled a distance of

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato