Answer:
The vertex is (-3, 7)
Step-by-step explanation:
As the equation is already in 'rectangular form), to work out the vertex, we can just compare this equation to that of the standard parabola y = x^2, and in particular, consider how it has been translated:
the (x+3) part moves the graph the the left 3 (i.e in the negative direction), while the +7 moves the graph up 7.
So as the vertex of the simple parabola y = x^2 is (0,0), the vertex of this graph is just (-3,7).
Note that the -2 at the front doesn't impact this vertex - this -2 just changes the 'scale' of the parabola (i.e makes it more narrow, and also turns it upside down as it's a negative number).
We have to find on the graph which is f ( - 3 ).
This is the quadratic function which passes through the points: ( - 6, - 3 ), ( 0 , - 3 ) and ( - 3, - 9 ).
Also we can conclude that the point ( - 3, - 9 ) is the minimum value of this function. So : f ( - 3 ) = - 9.
Answer:
A ) - 9.
The answer is $1.36 because you have to add $3.40+3.40 because he buys two airplanes. Afterwards you multiply times .20 and get 1.36 because you always have to move 20% two places to the left
Answer:
La cantidad de cable necesaria es de 47.43 metros.
Step-by-step explanation:
La información dada es;
Longitud, L de la tierra = 2 × Ancho, W de la tierra
Por lo tanto tenemos;
L = 2 × W
El área cubierta por la tierra = 125 m²
Lo que da;
L × W = 125 m² = 2 × W × W = 2 × W²
W² = 125/2 = 62.5
W = √62.5 = 
= 7,91 metros
La longitud = 2 × ancho = 2 × = 5·√10 metros
La longitud del cable requerido = El perímetro de un rectángulo que forma la cerca = 2 × Ancho + 2 × Longitud del rectángulo
La longitud del cable requerido = 2 × 5·√10 + 2× = 10 · √10 + 5 · √10 = 15 · √10 metros = 47.43 metros.
Choice D, because, there is no equal symbol
