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Consider the functions: f(x) = x2 + 4x – 1 and g(x) = 2x + 5. See graphs alongside. a) Identify each curve b) Find the coordinates of points A, B,..., c) Confirm your calculations by using technology​

Consider the functions: f(x) = x2 + 4x – 1 and g(x) = 2x + 5. See graphs alongside. a) Identify each curve b) Find the coordinates of points A, B,..., c) Confi class=

Answer :

evgeniylevi

Step-by-step explanation:

try the option shown in the attachment.

Finally,

[tex]A(-2-\sqrt{3};0);[/tex]

[tex]B(-1-\sqrt{7};3-2\sqrt{7});[/tex]

[tex]C(-2+\sqrt{3};0);[/tex]

[tex]D(-1+\sqrt{7};3+2\sqrt{7});[/tex]

[tex]E(0;5);[/tex]

[tex]F(-\frac{5}{2};0);[/tex]

[tex]G(-2;-5).[/tex]

in order to calculate the points E & F it is needed to solve the equations y=2*0+5 and 2x+5=0;

in order to calculate the vertex G it is needed to find x-coordinate:

x=(-4)/(2*1)=-2 and to substitute x=-2 into y=x²+4x-1 (y=-5).

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