A function is defined by fx) = 5(2-x). What is f(-1)?

f ( x ) = 15

Step-by-step explanation:

Step 1:

f ( x ) = 5 ( 2 - x )          Function

Step 2:

f ( - 1 )          Given

Step 3:

f ( x ) = 5 ( 2 - ( - 1 ) )          Input x

Step 4:

f ( x ) = 5 ( 3 )          Combine Like Terms

f ( x ) = 15

Hope This Helps :)

15

Step-by-step explanation:

Since there is a -1 in place of the x, that means for every x value, x = the number in place of the x, so in this case every x would equal -1.

f(x) = 5(2-x)

f(-1) = 5(2+1)

f(-1) = 5(3)

f(-1) = 15

the answer is a

step-by-step explanation:

because if you put 1 in to the square root of x it equals 300.

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'.