Desperately need help with Algebra II!!!

**Megas Methuselah** · 09-15-2009, 03:33

I aced my Calculus and other inferior math classes back in high school with ease, mah man. Ya need some help? Come buy some meth! I'm everything you'll ever need, the answers to your life's questions...

**Prussian to the Iron** · 09-15-2009, 13:05

Ok, this is the test I bombed on (7/20). I wanna see if you guys get it right, because now I have the feedback and answers. Not doubting you guys or anything, just like to make sure.

2 . Which of the following is not a solution of 4x + 3y = 24.

A. (8, 0)
B. (6, 0)
C. (3, 4)
D. (–3, 12)

3 . David has $1.05 in dimes and quarters. How many combinations of coins could he have?

A. 1
B. 2
C. 3
D. 5

7 . Find the value of k so that (–1, 5) lies on kx – 4y – k = 0.

A. 20
B. –10
C. infinite number of solutions
D. no solution

9 . What is the slope of a line that passes through the points (8, –3) and (–2, 4)?

10 . What is the slope of the line 2x + y = –8?

11 . What is the slope of a vertical line?

A. 0
B. –1
C. no slope
D. 1

12 . Find the value of k so that a line passing through (k, k – 3) and (–2, 4) has a slope of

A. –3
B. 2
C. 5
D. 10

13 . Which statement is true of a line with a slope of zero?

A. It passes through the origin.
B. It is a vertical line.
C. It has a y-intercept of zero.
D. It is a horizontal line.

14 . Which is an equation in standard form of a line that passes through (2, –1) and has a slope of

A.

B. 3x – y = 7
C. 3x + y = 7
D. x – 3y = 5

15 . Which equation below has a slope of –2 and a y-intercept of 1 and is in standard form?

A. y = –2x + 1
B. –2x + y = 1
C. 2x + y = 1
D. 2x – 1 = y

16 . Which equation below passes through the points (1, –1) and (8, 2)?

17 . If a system of equations has no solution, what is true of the graph of the system?

A. The lines are parallel.
B. The lines have the same slope and y-intercept.
C. The lines have the same y-intercept and different slope.
D. The lines intersect at one point.

18 . Solve the system of equations 4x – y = 9 and 3x – 5y = 11. What is the x-coordinate of the solution?

A. –2
B. –1
C. 2
D. 3

19 . The system of equations 3x – 2y = x + 8 and y = x – 4 has an infinite number of solutions. Which of the following is not one of its solutions?

A. (3, –1)
B. (–2, –6)
C. (0, –4)
D. (5, –1)

20 . Solve the system of equations x = –6y + 2 and What is the y-coordinate of the solution?

**LittleGrizzly** · 09-15-2009, 13:15

2 a

5 what graph ?

I love Algerbra but have to goto work...

**Prussian to the Iron** · 09-15-2009, 13:29

sorry, lots of them are images (like the fractions) so they wont come over with a copy+paste. didnt see that one!

**naut** · 09-15-2009, 14:16

Originally Posted by Prussian Iron

sorry, lots of them are images (like the fractions) so they wont come over with a copy+paste. didnt see that one!

Print-screen and upload?

Long time since I've done any maths other than Financial maths. Not that I'm unhappy about that though.

**Prussian to the Iron** · 09-15-2009, 14:35

ah yes, but my keyboard has no print screen. laptop you see.

**pevergreen** · 09-16-2009, 00:47

15 is A)

y = mx + c is the standard format for the thingy. M is the gradient and C is y-intercept.

Rest are in terms we don't use in Queensland, or need images etc

I'm pretty sure most (if not all) laptop keyboards have a print screen function. It may just be in blue, under a function key.