4. Quadratics
4.09 Quadratic functions and technology
Interactive practice questions
Use your calculator or other handheld technology to graph $y=4x^2-64x+263$y=4x2−64x+263.
Then answer the following questions.
a
What is the vertex of the graph?
Give your answer in coordinate form.
The vertex is $\left(\editable{},\editable{}\right)$(,)
b
What is the $y$y-intercept?
Give your answer in coordinate form.
The $y$y-intercept is $\left(\editable{},\editable{}\right)$(,)
Easy
1min
Use your calculator or other handheld technology to graph $y=4x^2+48x+135$y=4x2+48x+135.
Then answer the following questions.
Easy
1min
Use your calculator or other handheld technology to graph $y=-4x^2-48x-140$y=−4x2−48x−140.
Then answer the following questions.
Easy
1min
Use your calculator or other handheld technology to graph $y=-3x^2+12x-13$y=−3x2+12x−13.
Then answer the following questions.
Easy
1min
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