Question

How many real solutions exist for this system of equations?

y=x^2+4
y= 4x
ОА. .
zero
OB.
one
Ос.
two
OD
infinite
Reset
Next

Answer 1

One

Explanation:

Set each equations equal to each other

`{x}^(2) + 4 = 4x`

`{x}^(2) - 4x + 4`

Find the discrimant.

`{ - 4 {}^(2) - 4(1)(4) } = 0`

This means there is one real solution. Since the discramnt equal 0.