plot the approximate location of √23 on the number line.

Step-by-step explanation:

Please find the attachment.

We have been given a number line and we are asked to plot the approximate location of on the given number line.

Let us find the value of using calculator as:

Upon rounding the value of to nearest tenth we will get,

We can see that each small part on the number line equals 0.25, therefore we should plot the approximate location of just after 4.75.  

c.

step-by-step explanation:

substitution for (0,1)

y=x^2+4x+1

1=0^2+4(x)0+1

1=0+4(x)0+1

1=4(x)0+1

1=0+1

1=1

substitution for (-3,-2)

y=x+1

-2=-3+1

-2=-2