Match the steps to find the equation of the parabola with focus (-1, -8.75) and directrix y = -9.25. 1.
( *+1 ) + y +8.75 ) = ( y +9.25 )
x2 + 2x + 1 = 2y +9
Set the distance from focus to the
point equal to the distance from directrix
to the point.
Write the equation of the parabola.
2. ( X+1 + y +8 75 )
Find the distance from the point on
3. Use (x, y).
the parabola to the directrix.
4. y=
1
.X² +X-4
2
Square both sides and simplify.
=
y +9.25)
Choose a point on the parabola.
5. v( x+1 ) + y +8.75 »
6. vy+9.25 )
Find the distance from the focus to
the point on the parabola.

Answer: d. 39 cmin the diagram, the approximate length of the minor arc de is 39 centimetres.step-by-step explanation: the formula for the length of an arc in a circle is as displayed below.let the length of the minor arc de = xx = 2( pi )r × angle of sector / 360°from this, we will substitute the values given from the problem into the formula to obtain the length of the minor arc de.x = 2( pi )r × angle of sector / 360°r = radius = 25cmpi as an approximate value = 3.14angle of sector = 120°x = 2( 3.14 )( 25 ) × 120° / 360°x = 157 × 1 / 4x = 39.25x = 39 ( rounded to the nearest whole number as an approximate value )