Graph the equation y=x2+4 . How does the graph interact with the x-axis?(1 point) Responses The graph touches the x-axis at one point. The graph touches the x-axis at one point. The graph crosses the x-axis at two points. The graph crosses the x-axis at two points. The graph does not cross or touch the x-axis. The graph does not cross or touch the x-axis. Question 2 What does this tell us about the number and nature of the solutions for this equation?(1 point) Responses The equation has 1 real solution with multiplicity The equation has 1 real solution with multiplicity The equation has 1 real solution and 1 complex solution The equation has 1 real solution and 1 complex solution The equation has 2 real solutions The equation has 2 real solutions The equation has 2 complex solutions The equation has 2 complex solutions It is impossible to determine how many solutions there will be based on the graph alone

1 answer

To analyze the equation \( y = x^2 + 4 \), we can first look at how it interacts with the x-axis.

  1. Graph Interaction with the X-axis:

    The equation \( y = x^2 + 4 \) is a parabola that opens upwards. To find when it intersects the x-axis, we set \( y = 0 \):

    \[ 0 = x^2 + 4 \]

    Solving for \( x^2 \):

    \[ x^2 = -4 \]

    This equation has no real solutions since \( x^2 \) cannot be negative. Therefore, the graph does not cross or touch the x-axis.

    Answer: The graph does not cross or touch the x-axis.

  2. Nature of the Solutions:

    Since the graph does not touch or cross the x-axis, this indicates that the equation has no real solutions. Instead, the solutions are complex.

    Answer: The equation has 2 complex solutions.