Algebra 2 Topic 2 checkup 2-1 and 2-2

What is the vertex of the following quadratic equation:

 $f\left(x\right)\ =\ \left(x-1\right)^2+3$  

• (-1, 3)

• (1, -3)

• (1, 3)

• (-1, -3)

Which of the following functions represents a parabola with a vertex at (-3, 4) and that passes through the point (-1, -4)?

• $f\left(x\right)\ =\ x^2-5$

• $f\left(x\right)\ =\ -2\left(x+3\right)^2+4$

• $f\left(x\right)\ =\ 2\left(x+1\right)^2-4$

• $f\left(x\right)\ =\ 2\left(x-3\right)^2-32$

Consider the quadratic function

 $y=5x^2-50x\ -\ 100$  
Which of the following are true? Select ALL that apply

• Its vertex is (5, -225)

• Its y-intercept is (0,100)

• It passes through the point (-1, -45)

• The minimum height occurs when x = 5

• The maximum height occurs when x = 5

Tags

CCSS.HSF-IF.C.7A