Does anyone understand this? show work please. thank you.

You need to satisfy the equation.

I will solve one.

Step-by-step explanation:

x -2 < -5

now add + 2 to both sides to keep its value.

now we end up with x <-3, which means that the value of x should be less than -3 in order to satisfy the equation.

So -5 is an answer, -4 is an answer, but not -3 because it should be less than -3 not equal.

As for number 9 the dash underneath the less than symbol means that it can equal to.

Hope this helps.

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4