C, x = +-7. Difference of squares
slope m = - 2 → B
calculate m using the ' gradient formula '
m = (y₂ - y₁)/(x₂ - x₁)
choosing 2 'clear ' coordinates from the graph of the line
(x₁, y₁) = (0, 7) and (x₂, y₂) = (7, - 5
) =
= - 2
m =
It has already given you the answer.
W=14<span>
And i put my answer in the box.</span>
The correct answer is C, as long as there is supposed to be a slash there. ;)
Have an awesome day!