what is x square - 3 x + Y=0Y = 0

Answer: The equation x2−3x+y=0x^2 - 3x + y = 0 represents a parabola opening downwards with x-intercepts at (0,0)(0, 0) and (3,0)(3, 0), and its vertex at (32,94)(\frac{3}{2}, \frac{9}{4}).

Step-by-step solution

Step 1: Identify the equation type

The given equation is x2−3x+y=0x^2 - 3x + y = 0. This equation involves two variables, xx and yy, and the highest power of xx is 2, while the highest power of yy is 1. This structure indicates that it represents a parabola.

Step 2: Rearrange the equation to standard form

To better understand the parabola's properties, we can rearrange the equation to express yy in terms of xx. By moving the xx terms to the right side of the equation, we get y=−x2+3xy = -x^2 + 3x. This is the standard form for a parabola opening downwards.

Step 3: Find the roots (x-intercepts)

To find where the parabola intersects the xx -axis, we set y=0y = 0. This gives us −x2+3x=0-x^2 + 3x = 0. Factoring out −x-x, we get −x(x−3)=0-x(x - 3) = 0. This implies that x=0x = 0 or x=3x = 3. So, the parabola crosses the xx -axis at (0,0)(0, 0) and (3,0)(3, 0).

Step 4: Find the vertex

For a parabola in the form y=ax2+bx+cy = ax^2 + bx + c, the xx -coordinate of the vertex is given by x=−b2ax = -\frac{b}{2a}. Here, a=−1a = -1 and b=3b = 3, so x=−32(−1)=32x = -\frac{3}{2(-1)} = \frac{3}{2}. Substituting this value back into the equation, we find the yy -coordinate: y=−(32)2+3(32)=−94+92=94y = -(\frac{3}{2})^2 + 3(\frac{3}{2}) = -\frac{9}{4} + \frac{9}{2} = \frac{9}{4}. Thus, the vertex is at (32,94)(\frac{3}{2}, \frac{9}{4}).

More from this chapter

All Pair of Linear Equations in Two Variables solutions →

Solve your own maths question free →