Quadratics In Vertex Form Worksheet Page 4
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2
3
4Activity B (continued from previous page)
3. In the Gizmo, graph y = –(x – 2) + 1. Select the TABLE tab.
A. How can you use the table to find the x- and y-intercepts?
B. What are the intercepts? x-intercepts:
y-intercept:
Select the CONTROLS tab to check your answer.
4. Tell whether the graph of each of the following functions opens up or down, and find the
vertex, line of symmetry, and intercepts. Show your work for the intercepts. Then graph each
function in the Gizmo to check your answers. Sketch each graph on the coordinate plane to
the right of each function.
A. y = 2(x – 5)
2
– 2
Opens:
Vertex: (
,
)
Axis of symmetry: x =
y-intercept:
x-intercepts:
B. y = –3(x + 4)
2
+ 3
Opens:
Vertex: (
,
)
Axis of symmetry: x =
y-intercept:
x-intercepts:
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