You are checking the results of a phone app that counts calories. when someone eats, it is recorded as positive calories. when someone exercises, it is recorded as negative calories. what is the number of net calories for a person with the following record? description calories bike, 30 min -270 breakfast 560 lunch 770 walk, 45 min -80 dinner 990 ping-pong, 30 min 130

1840

Step-by-step explanation:

The records of calories for a person is shown below:

Description         Calories

Bike, 30 min            -270

Breakfast                  560

Lunch                        770

Walk, 45 min             -80

Dinner                       990

Ping-pong, 30 min     130

We need to find the number of net calories for a person with the following record.

Therefore, the net calories for a person is 1840.

x=-2

infinite number of lines, so there is an infinite number of equations.

step-by-step explanation:

there are an infinite number of line that passes through the point (-2,5)

x=-2   is one line that passes through the point

y = 5 is another line that passes through the point

(these two lines are perpendicular to each other).

since the number of   numbers are infinite and the slope is the ratio of two numbers,(change in y over change in x) we can have an infinite number of slopes.     our only condition is that it passes through the point (-2,5)