What is the prime number 1,11,21,51,

11

Step-by-step explanation:

11 is only divisible by 1

11

Step-by-step explanation:

11 is a prime number because prime numbers are numbers that can only be multiplied by themselves to get that answer. For example,

7 * 3 = 21,

but only 11 times 1 can make 11. So, 11 is the prime number

Hope this 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.