Question 1 The coordinates of the endpoints of DF are D(-9, -1) and F(11,4). Point Pis on DF. Determine the coordinates of point P if the line segment has a ratio of 2:3.
A
(3,2
B
(-1, 1)
С
(-3,-2)
D

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

i'm sorry i don't know

step-by-step explanation:

your answer would be b