Test 2 – Chapters 1 – 4 – Algebra

Algebra -Test 2 - Chapters 3 & 4

1. Solve the equation:

3-2left|x+2right|=-5

 

Select all applicable answers.

Question 1 of 15

2. In the year 2012 there were 80 shark attacks. 2015, there were 98 shark attacks. Find the rate of change (slope) for shark attacks per year. Write your answer as a simplified fraction, or as a whole number)

Question 2 of 15

3. Given the function f(x)=3x^2-5x+1, calculate f(2). Write the numerical value only.

Question 3 of 15

4. Given the function f(x)=3x^2-5x+1, calculate f(-2). Write the numerical value only.

Question 4 of 15

5. Solve the equation for the variable:

frac{3}{4}x+5=frac{1}{8}

Question 5 of 15

6. Solve the given formula for r:

2r+3z=12m

Question 6 of 15

7. Solve the compound inequality. Write your answer in interval notation.

3x+7le1      text{ OR }     5x-12>13

 

 

Question 7 of 15

8. Write the equation of the line with a slope of frac{2}{5} that goes through the point (5,8). Write your answer in slope-intercept form.

Question 8 of 15

9. Write the equation of the line that passes through the points (2,4) and (7,-6). Write your answer in slope-intercept form.

Question 9 of 15

10. Write the equation of the line perpendicular to the line 3x-5y=21 that goes through the point (3,-2). Write your answer in standard form.

Question 10 of 15

11. Solve the system by substitution. Write your answer as an ordered pair.

left{begin{array}{c}x+3y=-2 \ 2x+7y=-6 end{array}right.

Question 11 of 15

12. Solve the system by Any method you choose. Write your answer as an ordered pair (x,y)

left{begin{array}{c}2x+5y=-1\3x-4y=10end{array}right.

Question 12 of 15

13. Solve the system by elimination. Write your answer as an ordered pair:

left{begin{array}{c}2x+3y=-3\2x-5y=-11end{array}right.

Question 13 of 15

14. Solve the system by first creating a matrix, then use matrix operations to solve for the variables. Write your solution as an ordered pair:

left{begin{array}{c}4x-3y=14\x-2y=6end{array}right.

Question 14 of 15

15. Adult admission to a play is 5 while Children's tickets cost3. If 135 people attended the play, bringing in $585 revenue, how many of each ticket type were sold?

Question 15 of 15