Asked by Emmanuel
a)Write a function o represent the area of the rectangle.
one side - 5x+15
other side - 31-2x
b) Graph the function- lebel x and yint
c)what dp the x-intercepts represent in this situaltion?
d)Does the funtion have a maximum value in this situaltion? Does it have a minimum value? give max or min value.
e)what information does the vertex give about this situation? Give the vertex.
f)what are the domain and range?
one side - 5x+15
other side - 31-2x
b) Graph the function- lebel x and yint
c)what dp the x-intercepts represent in this situaltion?
d)Does the funtion have a maximum value in this situaltion? Does it have a minimum value? give max or min value.
e)what information does the vertex give about this situation? Give the vertex.
f)what are the domain and range?
Answers
Answered by
Steve
(a) clearly, a = (5x+15)(31-2x)
(b) I think you can graph a parabola
(c) values for zero area
(d) use what you know about parabolas
(e) ditto
(f) since this is a real-world situation, negative lengths are meaningless. So, D = [-3,31/2]
R = [0,<value at vertex>]
(b) I think you can graph a parabola
(c) values for zero area
(d) use what you know about parabolas
(e) ditto
(f) since this is a real-world situation, negative lengths are meaningless. So, D = [-3,31/2]
R = [0,<value at vertex>]
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