Y = (x – 4)2 + 5
D:
R:

= ( − 4 ) 2 + 5

Step-by-step explanation:

Direction: Opens Up

Vertex:  

( 4 , 5 )

Focus:  ( 4, 21 4)

Axis of Symmetry:  x =4

Directrix:  y = 19 4

Select a few

x

values, and plug them into the equation to find the corresponding

y

values. The  

x

values should be selected around the vertex.

Tap for more steps... x y 2 9 6 4 5 5 6 9

Graph the parabola using its properties and the selected points.

Direction: Opens Up

Vertex:  ( 4 , 5 )

Focus:  ( 4 , 21 4 )

Axis of Symmetry:  x = 4

Directrix:  y = 19 4 xy 2 9 3 64 5 5 6 6 9

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.