Graphing Quadratics TI-84

When finding the x-intercepts using the TI-84 graphing calculator, which option do you choose from the CALCULATE menu?

• 1: value

• 2: zero

• 3: minimum

• 4: maximum

Graph the equation  $y=x^2+4x-5$  on your TI-84 graphing calculator.

What are the coordinates of the vertex?

• (-2, -8)

• (-2 , -9)

• (-1, -8)

• (-1, -9)

Graph the equation  $y=\left(x+4\right)\left(x-6\right)$  on your TI-84 graphing calculator.

What are the coordinates of the x-intercepts?

• (-4, 0) and (6 , 0)

• (4, 0) and (-6 , 0)

• (0, -4) and (0, -6)

• (0 , 4) and (0 , 6)

Graph the equation  $y=2\left(x+3\right)^2-12$  on your TI-84 graphing calculator.

What are the coordinates of the y-intercept?

• (0 , 5)

• (0 , 6)

• (0 , 7)

• (0 , 8)

Graph the equation  $y=2x^2+4x-5$  on your TI-84 graphing calculator.

What are the coordinates of the of BOTH x-intercepts?

Graph the equation  $y=\left(x+3\right)\left(x-2\right)$  on your TI-84 graphing calculator.

What are the coordinates of the y-intercept?

Graph the equation  $y=x^2-2x-7$  on your TI-84 graphing calculator.

What are the coordinates of the vertex?

Graph the equation  $y=0.25\left(x+4\right)^2-1$  on your TI-84 graphing calculator.

Find and identify ALL four key features. (Both x-intercepts, the y-intercept, and vertex).

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