# Algebra 1 Module 9 DBA Study Guide.docx - The lowest or...

• No School
• AA 1
• 3
• 100% (3) 3 out of 3 people found this document helpful

This preview shows page 1 - 2 out of 3 pages.

The preview shows page 1 - 2 out of 3 pages.
The lowest or highest point of a parabola is called the vertex.The x-coordinate of the vertex is found using the formula x = .To find the y-coordinate of the vertex, substitute the x-coordinate into the equation and solve for y.The axis of symmetryof a parabola is also found using the formula x = .Domain is the set of all possible x-values for an equation.Range is the set of all possible y-values for an equation.The average rate of change is calculated by dividing the change in the y-values by the change in the x-values.f(x + k) shifts the graph left if k > 0 and right if k < 0.f(x) + k shifts the graph up if k > 0 and down if k < 0f(kx) makes the parabola wider if 0 < |k| < 1, and narrower if |k| > 1. If k is negative, the parabola will open downward.Remember that f(x) and y are interchangeable.Completing the SquareBe sure that the equation is equal to f(x) or equal to zero.

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 3 pages?