Kyle wants to find the equation of the line that passes through the points (1, –7) and (–1, 1) . Which set of calculations will help Kyle find the equation of the line?

Question

asked Apr 15, 2019 135k views

1 Answer

Domonique · Answer 1 · 2019-04-19T09:24:01+0000

Answer: Option 'c' is correct.

Explanation:

Since we have given that

There are two points as follows:

$(1,-7)\ and\ (-1,1)$

As we know the formula for "Two point slope form":

m=(y_2-y_1)/(x_2-x_1)

Now, we put the values in the above equation ,

$m=(1+7)/(-1-1)\\\\m=(8)/(-2)\\\\m=-4$

Now, we use this form "
y=mx+b "

So,

$-7=-4(1)+b\\\\-7+4=b\\\\-3=b$

Hence, Option 'c' is correct.