Practice problem
The distance formula is d=(x2−x1)2+(y2−y1)2d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}d=(x2−x1)2+(y2−y1)2. Solve for y1y_1y1.
y1=y2−d−x2−x1y_1=y_2-d-x_2-x_1y1=y2−d−x2−x1
y1=y2±d2−(x2−x1)2y_1=y_2\pm\sqrt{d^2-(x_2-x_1)^2}y1=y2±d2−(x2−x1)2
y1=d2−(x2−x1)2−y2y_1=\sqrt{d^2-(x_2-x_1)^2}-y_2y1=d2−(x2−x1)2−y2
y1=d−x2−x1−y2y_1=d-x_2-x_1-y_2y1=d−x2−x1−y2
Type a concept, like “slope” or “photosynthesis”.
