It is very important that you show your work for this exam. You will only receive partial credit if your work is not shown.

Algebra 2 Midterm Exam

Name:

Directions: Use what you have learned in this course to answer the following

questions. Justify your responses completely. Each question is

worth 5 points.

1. Solve for n: –6(n – 8) = 4(12 – 5n) + 14n.

2. For f(x) = 2|x+3| – 5, name the type of function and describe each of the three

transformations from the parent function f(x) = |x|.

3. Determine whether f(x) = –5𝒙𝟐 – 10x + 6 has a maximum or a minimum value.

Find that value and explain how you know.

4. The median weekly earnings for American workers in 1990 was $412 and in

1999 it was $549. Calculate the average rate of change between 1990 and

1999.

5. Find the roots of the parabola given by the following equation.

2×2+ 5x – 9 = 2x

6. Describe the end behavior and determine whether the graph represents an

odd-degree or an even-degree polynomial function. Then state the number of

real zeros.

7. GEOMETRY Recall the formula for finding the area of a rectangle. Define a

variable for the width and set up an equation to find the dimensions of a

rectangle that has an area 144 square inches, given that the length is 10

inches longer than its width.

DIMENSIONS:

Length:

Width:

8. The amount f(t) of a certain medicine, in milligrams, in a patient’s

𝟔𝟎𝒕

bloodstream t minutes after being taken is given by f(t) = 𝟐

.

𝒕 +𝟒𝟔

Find the amount of medicine in the blood after 20 minutes.

9. Graph f(x) = x2 + 2x – 3, label the function’s x-intercepts, y-intercept and

vertex with their coordinates. Also draw in and label the axis of symmetry.

10. Determine whether the relation shown is a function. Explain how you know.

11. Solve the inequality and graph the solution on a number line.

–3(5y – 4) ≥ 17

12. Assume that the wooden triangle shown is a right triangle.

a. Write an equation using the Pythagorean

Theorem and the measurements provided in

the diagram.

Hint: (leg 1)2 + (leg 2)2 = (hypotenuse)2

b. Transform each side of the equation to

determine if it is an identity.

13. Use long division or synthetic division to find the quotient of

14. Simplify (9𝒌𝟔 + 8𝒌𝟒 – 6𝒌𝟐 )(4𝒌𝟐 – 5).

𝟐𝒙𝟑 + 𝒙𝟐 + 𝟏

𝒙+𝟏

.

15. Find the inverse of h(x) =

𝟐𝒙 + 𝟔

𝟓

.

16. If f(x) = 2x – 1 and g(x) = 𝒙𝟐 – 2, find [g ◦ f](x).

17. Graph the function y = √𝒙 + 𝟒 – 2. Then state the domain and range of the

function.

Domain:

Range:

18. If f(x) = 3×2 – 2 and g(x) = 4x + 2, what is the value of f + g 2 ?

The price of a sweatshirt at a local shop is twice the price of a pair of shorts.

The price of a T-shirt at the shop is $4 less than the price of a pair of shorts.

Brad purchased 3 sweatshirts, 2 pairs of shorts, and 5 T-shirts for a total

cost of $136.

19. Let w represent the price of one sweatshirt, t represent the price of one Tshirt, and h represent the price of one pair of shorts. Write a system of three

equations that represents the prices of the clothing.

20. Solve the system. Find the cost of each item.