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## How do you find the root of a graph?

A root is a value for which a given function equals zero. When that function is plotted on a graph, the roots are points where the function crosses the x-axis. For a function, f(x), the roots are the values of x for which f(x)=0 f ( x ) = 0.

## What is a square root graph called?

A radical function contains a radical expression with the independent variable (usually x) in the radicand. Usually radical equations where the radical is a square root is called square root functions.

## How do you transform a square root function?

Changing the value of a results in a vertical stretch or compression, and changing the sign of a results in a reflection across a horizontal axis. Changing the value of h results in a horizontal shift, and changing the value of k results in a vertical shift. Now think about the square root function f(x) = a√(x – k.

## How do you estimate the solution of a graph?

USING A GRAPH TO ESTIMATE THE SOLUTION OF A SYSTEM

- Step 1: To sketch the graph of the equations, write them in slope-intercept form.
- Step 2: Find the point of intersection of the lines.
- Step 3: Solve the system algebraically.
- Step 4: Substitute the expression for x in the other equation and solve.
- Step 5:
- Step 6:
- Step 1:
- Step 2:

## Where is the vertex on a graph?

The vertex of a parabola is the point where the parabola crosses its axis of symmetry. If the coefficient of the x2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “ U ”-shape.

## Is a square on a graph a function?

The square of a number is the number multiplied by itself. A square function is a quadratic function. Its parent function is y=x^2 and its graph is a parabola. A square root function is a function with the parent function y=sqrt{x}.