Problem In 15 years, Maya will be twice as old as David is now. In 15 years, David
will be as old as Maya will be 10 years from now. How old are they now?

Mary is 25 David is 20

Step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

you cant answer this dummy

step-by-step explanation: