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4.09 Quadratic functions and technology

Interactive practice questions

Use your calculator or other handheld technology to graph $y=4x^2-64x+263$y=4x264x+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=4x248x140.

Then answer the following questions.

Easy
1min

Use your calculator or other handheld technology to graph $y=-3x^2+12x-13$y=3x2+12x13.

Then answer the following questions.

Easy
1min
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