Easy geometry question pls help

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 4x^2 - 19x- 5

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d

Find the sum of the given arithmetic series. 24 + 17 + 10 + 3 + + (–39)