The equation of the line goes through the points (-4, 7) and (4, -7)
what is the slope?
What is the B value?
I keep getting 3/4, which is incorrect.?
Erm, hai...for what I can see is that you just need to find the slope using the general equation, which is y2 - y1 / X2 - X1...
And you will get (-14/8),
then you just use slope equation to find for the equation of line...
You should get these, y= -7/4...and I think it should not be 3/4
Aright then, best regards and work hard yeah..me too, haha..
$\displaystyle (-4, 7),(4, -7)$
$\displaystyle \frac{y - y_1}{y_2 - y_1} = \frac{x - x_1}{x_2 - x_1}$
$\displaystyle \frac{y - 7}{-7 - 7} = \frac{x - (-4)}{4 - (-4)}$
$\displaystyle \frac{y - 7}{-14} = \frac{x + 4}{8}$
$\displaystyle 8(y - 7) = -14(x + 4)$
$\displaystyle 8y - 56 = -14x - 56$
$\displaystyle 8y = -14x$
$\displaystyle y = \frac{-14}{8}x + 0$
The gradient (m) is $\displaystyle \frac{-14}{8}$ and the y-intercept (c or b) is 0.