A lines passes through the point (1,-3). State the coordinates of one other point on the line so that the slope of the lines is:
a. 4
b. undefined
c. (3/4)
Please help. What's the formula to solve this? Thanks.
Hi larry21,
[a] slope = 4, points (1, -3) and (x, y)
$\displaystyle \frac{y_2-y_1}{x_2-x_1}=4$
$\displaystyle \frac{y- ^-3}{x-1}=\frac{4}{1}$
$\displaystyle y+3=4 \:\: and \:\: x-1=1$
$\displaystyle y=1 \:\:and\:\:x=2$
$\displaystyle (2, 1)$
Do you think you could follow these steps and complete
the others?