What is the rate of change for -8x-4y=10-2x+6y

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

What is coefficient of the term of degree of degree 5 in the polynomial below