What is the y-value of the vertex of the function f(x)=-(x+3)(x-14)?

Gregory draws a scale drawing of his room. the scale that he uses is 1 cm : 4 ft. on his drawing, the room is 3 centimeters long. which equation can be used to find the actual length of gregory's room?

What are the solutions of the equation? 6x^2 + 11x + 4 = 0 a. 4/3, 1/2 b. -4/3, -1/2 c. 4/3, -1/2 d. -4/3, 1/2

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,