Katelyn is comparing the cost of rice at two different stores. The equation below represents the cost of rice at the first store, where x represents the number of pounds of rice and y represents the total cost. The cost of rice at the second store is shown in the table. Rice (Pounds) Total Cost 2 $1.50 3 $2.25 4 $3.00 Compare the unit rates in cost per pound for the two stores. Then, draw a ray that represents the proportional relationship with the smaller unit rate. Drawing Tools Click on a tool to begin drawing.

the discriminant is 64 + 4*1*12 = 112

this is prime.

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'.