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# Harcourt On Core Mathematics - Algebra 1: Online Textbook Help Final Exam

Free Practice Test Instructions:

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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Question 2
2.
At the grocery store, you buy three apples and five oranges for a total of $6.50. Your friend buys seven apples and two oranges for a total of $5.50. If *a* represents the cost of one apple, and *o* represents the cost of one orange, which of the following systems of linear equations can be used to find the cost of one apple and the cost of one orange?

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Question 3
3.
Let *x* = 5 and *y* = 4, and evaluate the expression shown using substitution.

#### Question 4 4. If a student got a 75, which bar should increase?

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Question 5
5.
What is the domain of the exponential function *f*(*x*) = *a**b* *x*?

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Question 6
6.
Solve the following system of linear equations by graphing:

*y* - 2*x* = 1

2*y*-2*x* = -6

*y*- 2

*x*= 1

*y*-2

*x*= -6

#### Question 7 7. Find the domain of f(x)/g(x), if:

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Question 8
8.
Evaluate the following piecewise function for x = 2 and x = -7.

f(x) = 2x + 3, x ≤ -5

f(x) = x³, x > -5

#### Question 9 9. If f(x) = -2x -5 and g(x) = x^2 + 1, find f(g(x)).

#### Question 12 12. What is the equation of the graph below?

#### Question 13 13. If f(x) = -2x - 5 and g(x) = x^2 + 1, find f(f(x)).

#### Question 15 15. Which of the following is not a quadratic function?

#### Harcourt On Core Mathematics - Algebra 1: Online Textbook Help Final Free Practice Test Instructions

Choose your answer to the question and click 'Continue' to see how you did. Then click 'Next Question' to answer the next question. When you have completed the free practice test, click 'View Results' to see your results. Good luck!

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