Root

An $x$-value for which a function has value zero. On a graph, a real root is the $x$-coordinate of an x-intercept.

An $x$-value at which the graph has $y=0$, so the graph meets the $x$-axis.

A value of $x$ for which the graph has $y=0$ and therefore meets the $x$-axis.

A value of $x$ that makes an equation true; on the graph $y=f(x)$, a real root is an $x$-coordinate where the graph meets the $x$-axis.

An $x$-value for which a function has value zero; on a graph it is where the curve meets the x-axis.

A value of the variable that makes an equation true. A quadratic equation may have two, one or no real roots.

A solution of $f(x)=0$; graphically, it is the $x$-coordinate where the graph of $y=f(x)$ meets the $x$-axis.

A value of $x$ for which a quadratic expression equals zero; on its graph, this is where the curve meets the $x$-axis.

An operation that reverses a power; for example, the principal square root of 25 is 5 because $5^2=25$.

A number which produces a given number when raised to a stated power. For example, $3$ is a square root of $9$ because $3^2=9$.

A value which produces a given number when raised to a stated power; for example, $\sqrt{x}$ is the square root of $x$.

A value of a variable that makes an equation true; a root of a quadratic is an $x$-value where its graph meets the $x$-axis.

A solution of an equation of the form $f(x)=0$; graphically, it is an $x$-coordinate where $y=f(x)$ meets the $x$-axis.

A value of $x$ that makes an equation true; for an equation written as $f(x)=0$, it makes $f(x)$ equal to zero.

A value where a quadratic expression equals zero; roots form the possible boundaries of a quadratic inequality's solution set.

A value of $x$ that makes an equation equal to zero. For a quadratic graph, real roots are the $x$-coordinates of its $x$-intercepts.