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How many solutions does this system of linear equations have? Explain.
1= 2
=1+3 2

1 Answer

10 votes

Answer: There are no real solutions.

Explanation:

We have the equation:

x = y^2

y = x + 3/2

To solve this, we can start by noticing that x is already isolated in the first equation, then we can replace it in the second equation to get:

y = y^2 + 3/2

And now we can rewrite this as:

y^2 - y + 3/2 = 0

This is a quadratic equation, and the solutions can be calculated with Bhaskara's equation, the solutions are:


y = (-(-1) +- √((-1)^2 - 4*3/2*1) )/(2*1) = (1 + √(-5) )/(2)

We have a negative number inside the square root, this means that the solutions are complex numbers.

Then we can conclude that the system of equations has no real solutions.

User Dhanesh
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