Use the graphing calculator to locate the solutions of this system of equations:

y = (x - 2) 2 - 15

-5x + y = - 1

One solution of the system of equations is.

A. (-1, - 6)

B. (-1, 6)

C. (1, - 6)

D. (1, 6)

a second solution of the system of equations is.

A. (0,0)

B. (10, - 51)

C. (10,49)

D. (10, 51)

Question

Lexie Walters

Mathematics

6 October, 15:15

Use the graphing calculator to locate the solutions of this system of equations:

y = (x - 2) 2 - 15

-5x + y = - 1

One solution of the system of equations is.

A. (-1, - 6)

B. (-1, 6)

C. (1, - 6)

D. (1, 6)

a second solution of the system of equations is.

A. (0,0)

B. (10, - 51)

C. (10,49)

D. (10, 51)

+1

Answers (1)

Know the Answer?

Winston · Answer 1

Hello,

y = (x-2) ²-15

y=5x-1

==> 5x-1=x²-4x+4-15

==> x²-9x-10=0

Δ=9²+4*10=11²

x = (9+11) / 2 or x = (9-11) / 2

==> (x=10 and y=5*10-1=49) or (x=-1 and y=5 * (-1) - 1=-6)

1) A (-1,-6)

2) C (10,49)

Use the graphing calculator to locate the solutions of this system of equations:y = (x - 2) 2 - 15-5x + y = - 1One solution of the system of equations is.A. (-1, - 6)B. (-1, 6)C. (1, - 6)D. (1, 6)a second solution of the system of equations is.A. (0,0)B. (10, - 51)C. (10,49)D. (10, 51)