Solve for each system of equations by substitution or elimination. 1.y=x^2+5x+1y=x^2+2x+12. y=x^2-2x-1y= -x^2-2x-13. y=x^2+2x+1y=x^2+2x-1

QUESTION 1

The given system of equations are:

We equate the two equations to get:

When x=0,

The solution is (0,1)

QUESTION 2

The given equations are:

and

We equate both equations to get:

Group similar terms,

We put x=0 into any of the equations to find y.

The solution is (0,-1).

QUESTION 3

The given equations are:

and

We equate both equations:

Group similar terms:

This is not true.

Hence the system has no solution.

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: