Quadratics and Complex Numbers — Test

Question 1

Which equation is the inverse of y is equal to 9 x squared minus 4 ?

Revolt · Accepted Answer

y is equal to the fraction with numerator plus or minus square root of x plus 4 end root and denominator 3

Question 2

Which function is a quadratic function?

Revolt · Accepted Answer

c times x is equal to negative 8 x squared plus 3 x minus 5

Question 3

If the end-of-year analysis indicates that profits did not meet expectations, which inequality in vertex form represents the region containing the results of the year?

Revolt · Accepted Answer

y is less than negative 2 times open paren x minus 25 close paren squared plus 200

Question 4

The graph shows the height of a projectile t seconds after it is launched. If acceleration due to gravity is negative 16 the fraction with numerator ft and denominator s squared , which equation models the height of the projectile correctly? h of t is equal to A t squared plus v t plus h sub 0

Revolt · Accepted Answer

h of t is equal to negative 16 t squared plus 32 t plus 5

Question 5

Which quadratic inequality in factored form is represented in the graph?

Revolt · Accepted Answer

y is greater than 3 open paren x plus 15 close paren open paren x plus 3 close paren

Quadratics and Complex Numbers — Test Answers

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