For the polynomial function f(x) = – 3x3 + 48x
a. Find the x-intercept(s) (enter as coordinates separated by commas):
b. Find the y-intercept (enter as a coordinate):
c. Find the interval(s) where the value of the function is positive.
d. Find the interval(s) where the value of the function is negative.

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1

b if for most of the graph

d if y intercept

step-by-step explanation: