Assertion: curve's point | /r/AtLocation | the parabola
Facets:
Source sentences:
text: j {\displaystyle {\frac {y_{i}-y_{j}}{x_{i}-x_{j}}}=x_{i}+x_{j}} if the points are on the parabola.)
text: (Proof: straightforward calculation: If the points are on a parabola, one may translate the coordinates for having the equation y = a x 2 {\displaystyle y=ax^{2}} , then one has y
text: At the positive x end of the chord, x = c/2 and y = d. Since this point is on the parabola, these coordinates must satisfy the equation above.