Find the image of (-7,-3) reflected across the x-axis

IF USING GEOMETRY...

x-axis = (x, -y)

Because the x does not have a negative sign the number DOES NOT change to its opposite form, but because the y has a negative sign the number DOES changes to its opposite form (from negative number to positive.)

So... if we use the formula of x-axis, which is (x, -y), the coordinates (-7,-3) would change to (-7, 3)

ANSWER (-7, 3)

Step-by-step explanation:

We will use the general formula of Arithmetic Progression, I.e., an = a + (n - 1)d, where,

a = first terman = last termd = common differencen = total terms in the A.P.

In this question, we assume that let the last term be 200.

If the value of n comes in whole number, 200 is a term and if it comes in decimal/fraction, then 200 is not the term.

Rest is in attachment.

Hope it helps :)