Interactive practice questions
A parabola of the form $y=ax^2$y=ax2 goes through the point $\left(2,-4\right)$(2,−4).
a
What is the value of $a$a?
b
What are the coordinates of the vertex?
Vertex $=$=$\left(\editable{},\editable{}\right)$(,)
c
Plot the graph of the parabola.
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Easy
2min
Find the maximum value of $y$y for the quadratic function $y=-x^2+10x-25$y=−x2+10x−25.
Easy
2min
Which of these graphs represents a parabola of the form $y=\left(x-a\right)^2$y=(x−a)2?
Easy
< 1min
Consider the graph.
Easy
2min
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