If x= –4 and y= 3 , what is the value of x–3y2 ?

-31

Step-by-step explanation:

(-4)-3(3)^2

-4-3(9)

-4-27=-31

Hey!

Solution:

= x - 3y²

= (-4) - 3(3)²

= (-4) - 27

= -31

-31

Hope This Helped! Good Luck!

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'.

the answer is:

mean: 6

mad: 2.14