Evaluate each expression for the given values of the variable: 8z + 3;z = 8

67

Step-by-step explanation:

8z + 3

Let z =8

8*8+3

64+3

67

67

Step-by-step explanation:

This question is based on substitution in which a specific number will be given to replace a letter, hope you understand

Then back to the question

8z+3 and z is given to be 8

Let's substitute

8(8)+3

64+3

67

Therefore the final answer is 67

I believe you understand how we get this final answer

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'.