What is the GCF of 81 and 72?

9

Step-by-step explanation:

81= 1,3,9,27,81

72= 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36,72

9 is the most common so GCF will be 9.

See below.

Step-by-step explanation:

81 - 1,3,9,27,81

72 - 1,2,3,4,6,8,9,12,18,24,36,72

The GCF is 9.

-hope it helps

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.

(-5,-28)

i graphed to on desmos.