The call plan costs offered by two payphone companies are shown on the graph.

1. Interpret the meaning of the coordinates
of the point where the graphs intersect.

2. You frequently use payphone and your
average call last longer than 10 minutes. Which company is the better deal for you?

3. If your budget for each phone call is at
most $25, which company is a better deal
for you?

$450

step-by-step explanation:

first, you have to multiply 150x2=300

next, you have to add 150+300= 450

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.