What is the slope-intercept form of an equation with a slope of -1 and a y-intercept of -7

What are the domain and range of the functiony = 2(x - 3)2 + 4?

The cash price of a television is $580.the hire-purchase price of the television is $865.the hire-purchase price is an initial deposit of n% of the cash price and 6 equal monthly payments of $120.find the value of n.

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution