Solving Quadratic Equations — Test

Question 1

Use the zero product property to find the solutions to the equation x squared plus 12 is equal to 7 x

Revolt · Accepted Answer

x is equal to 3 or x is equal to 4

Question 2

The square of a number is 12 less than 7 times the number. What is the number?

Revolt · Accepted Answer

3 or 4

Question 3

Which statement could be used to describe the functions?

Revolt · Accepted Answer

Both original functions have a domain of open paren negative infinity comma infinity close paren .

Question 4

Graphs A and B are the result of combining two linear functions, f of x and g of x The functions were combined by addition to form h of x , and then by multiplication to form j times x Which statements describe the graphs? Choose two correct answers.

Revolt · Accepted Answer

The y -intercepts of f of x and g of x have opposite signs.; Graph B represents h of x .

Question 5

Which statements can be used to describe the original functions f of x and g of x ? Choose three correct answers.

Revolt · Accepted Answer

f of x could have a rate of change equal to 2 and g of x could have a rate of change of negative 1 .; When multiplied, the product of the y -intercepts must be 8 .; Either f of x or g of x has a positive rate of change and the other has a negative rate of change.

Solving Quadratic Equations — Test Answers

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