Respuesta :

ShyzaSling

Answer:

option D

(-1,-3) and (3,13)

Step-by-step explanation:

Given in the question two equations

y = 4x + 1

y = x² + 2x - 2

Equate both functions

4x + 1 = x² + 2x - 2

rearrange the x term and constant

-x² + 4x - 2x + 2 + 1 = 0

-x² + 2x + 3 = 0

factors

-x * 3x = -3x²

-x + 3x = 2x

-x² -x + 3x + 3 = 0

-x(x+1) +3(x+1) = 0

solve

(x+1)(3-x) = 0

x = -1

and

x = 3

Plug these values in equation to find y

x = -1

y = 4(-1)+ 1

y = -3

x = 3

y = 4(3)+ 1

y = 13

kudzordzifrancis

Answer:

D. (-1,-3) and (3,13)

Step-by-step explanation:

The given equation is;

[tex]y=4x+1[/tex]

and

[tex]y=x^2+2x-2[/tex]

Equate both equations to get;

[tex]x^2+2x-2=4x+1[/tex]

[tex]x^2+2x-4x-2-1=0[/tex]

[tex]x^2-2x-3=0[/tex]

Split the middle term to obtain;

[tex]x^2-3x+x-3=0[/tex]

Factor by grouping;

[tex]x(x-3)+1(x-3)=0[/tex]

[tex](x-3)(x+1)=0[/tex]

x=-1,x=3

When x=-1, y=4(-1)+1=-3

(-1,-3)

When x=3, y=4(3)+1=13

(3,13)

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