Question

Find the slope of the line that contains the points (4,-3) and (-4,1). is it undefined?

Answer 1

$\huge{\boxed{-\frac{1}{2}}}$

We can find the slope with $\frac{y_2-y_1}{x_2-x_1}$, where $(x_1, y_1)$ and $(x_2, y_2)$ are both points.

Plug in the values. $\frac{1-(-3)}{-4-4}$

Simplify. $\frac{1+3}{-4-4}$

Add/subtract. $\frac{4}{-8}$

Simplify. $\boxed{-\frac{1}{2}}$

Answer 2

Answer:

No.

The slope of the line is -1/2.

Step-by-step explanation:

I'll give you a hint, to solve slope of the line use $\displaystyle \frac{y_2-y_1}{x_2-x_1}$.

$\displaystyle \frac{1-(-3)}{(-4)-4}=\frac{4}{-8}=\frac{4\div4}{-8\div4}=\frac{1}{-2}=-\frac{1}{2}$

The slope of the line is -1/2, which is our answer.

I hope this helps!