Aline passes through (–7, –5) and (–5, 4).write an equation for the line in point-slope form.
rewrite the equation in standard form using integers.

now, the standard form, simply means, move everything to the left-hand-side, and make it = 0, so, only 0 on the right-hand-side

now. integers only, well, let's see what you get first, then you can get rid of any rationals

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.