1. ACT Review-linear and quadratic
2013
L’Anse Creuse Public Schools

2. What is the slope of a line joining points (3,-5) and (6,10)-4 -2 1 3 5

3. None of these are correct.
Which of the following equations shows x + 3y = 5 in slope-intercept form?
y = -1/3 x + 5
y = -1/3 x + 5/3
y = 1/3 x + 5/3
y = 1/3 x + 5
None of these are correct.

4. What is the slope of the line from the function 3x + 5y = 8?-5
- 5/3
- 3/5
3/5 8

5. f(x) = 6x - 13 f(x) = -6x - 13 f(x) = -13x + 6 f(x) = -13x – 6
The temperature at 1:00 p.m. on Tuesday was -13°C. There was an increase of 6°C per hour starting at 1:00 p.m. Which of the following best represents the Celsius temperature x hours after 1:00 p.m. on Tuesday?
f(x) = 6x - 13
f(x) = -6x - 13
f(x) = -13x + 6
f(x) = -13x – 6
None of these

6. What is the equation of the line that passes through (0,7) and (8,7)?
y= -7
x= 7
y= 7
x= -7
y= 8

7. The slope of a line that goes through (0,0) is -1
The slope of a line that goes through (0,0) is -1. What is the relationship between the x and y coordinates of each point on the line?
x is twice the y.
x is ½ the y.
x & y are the same
y is the negative of x
y is ½ of the x

8. Find the slope of line where 3x = 7y - 9-3
3/7
7/3 3 7

9. What is the relationship between each pair of x and y values in the table below?
y = -2x
y = -1/2x
y = 1/2x
y = 2x
None of these

10. What is the slope of a line parallel to x – 3y = 9
- 1/9
1/3 3 6 9

11. Which of the following has a y-intercept of 4 and is parallel to 3y-9x=20?
-12x + 4y = 16
9x – 3y = -15
2y = 4x + 10
7y = 14x + 7
3x – 9y = 14
Could just check y-int by x=0 too!

12. For which value of a is there no solution to the system: -x + 5y = 7 -6x + 10ay= 3220 30
None of these
Could just check y-int by x=0 too!

13. What is line is perpendicular to y = 3/5 x + 12?

14. What is slope of a line perpendicular to 2x – 7y = 12?
- 2/7
- 7/2 -7
2/7
7/2

15. What is the y- intercept of the line 6x – 3y = 12?-4 -3 3 4
Could just check y-int by x=0 too!

16. What is the relationship between each pair of x and y values in the table below?
y = -2x
y = -1/2x
y = 1/2x
y = 2x 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

17. What is the x- intercept of the line 6x + 3y = 12?-4 -2 2 4
Could just check y-int by x=0 too!

18. Which of the following describes the graph of f(x) = -x2 ?
A parabola that opens up.
A curved line.
A parabola that opens down.
It crosses y-axis at y= -1
It crosses x-axis at x= 2 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

19. If z = -4, what value of b makes the equation true when (2z + b)(z – 3) = 0-8 -7 3 8
None of these