Answer:
4x^2+17x+15
Step-by-step explanation:
(4x-3)(x+5)
= 4x(x+5) -3(x+5)
= 4x^2+ 20x -3x + 15
= 4x^2 + 17x + 15
Answer:
39%
Step-by-step explanation:
The lowest point is at the vertex, or U-turn.
The main purpose is to finda formula that fits the relationship between the two variables the best. Like the line of best fit on a scatter plot.