Which of the following equations has a graph that is narrower than the graph of
y = 2x2 + 3?

A) y = −3x2 + 2
B) y = −0.5x2 − 2
C) y = 2x2 − 3
D) y = 0.5x2 + 3

Respuesta :

Answer:

I think that is B but I'm not sure

Step-by-step explanation:

Answer:

A) y = −3[tex]x^{2}[/tex] + 2

Step-by-step explanation:

Given the function is:

  • y = 2[tex]x^{2}[/tex]+ 3

and the graph of it is a parabola because it is a Quadratic function

The standard form of a Quadratic function is the following

[tex]f(x)=ax^2+bx+c[/tex], where: "a", "b" and "c" are real numbers (a≠0)

The important thing to remember is that if the value of the coefficient leads "a" larger, then the parabola will be narrower.

In our given function, the coefficient lead is:  [tex]|a|=2[/tex]

In all 4 possible answer, only a has the absolute value of the coefficient lead,  [tex]|a|=3[/tex]  is greater than 2. So we choose A) y = −3[tex]x^{2}[/tex] + 2