Diane knows a phone call to a friend costs $1 for the 50 minutes and $1.50 cents for 100 minute. identify the variables in this situation: x= y= m = b =

Step-by-step explanation:

Let y represent the cost of the call.

Let x represent the number of minutes.

The equation of a straight line can be represented in the slope-intercept form, y = mx + b

Where b = intercept

Slope, m =change in value of y on the vertical axis / change in value of x on the horizontal axis

change in the value of y = y2 - y1

Change in value of x = x2 -x1

y2 = 1.5

y1 = 1

x2 = 100

x1 = 50

Slope = (1.5 - 1)/(100 - 50) = 0.5/50 = 0.01

To determine the intercept, we would substitute x = 50, y =1 and m= 3 into y = mx + b. It becomes

1 = 0.01 × 50 + b = 0.5 + b

b = 1 - 0.5 = 0.5

The equation becomes

y = 0.01x + 0.5

351°f

step-by-step explanation:

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'.