# Algebra

posted by Anoamis =D

What is the slope of the line in the graph show below?
/content/media/390571-1122011-42500-PM-1076804072.png

A) -2
B) -1
C) 1 (My Choice)
D) 2

Find the slope of a line that passes through (–2, –3) and (1, 1)

A) 1/3
B) 1
C) 2 (My Choice)
D) 4/3

For the equation -4y = 8x. What is the constant Variation.

A) -4 (My Choice)
B) -2
C) 1
D) 2

Suppose y varies directly with x, and y=24 when x=8. What is the value of y when x=10

A) 10
B) 30 (My Choice)
C) 80
D) 240

What is an equation for the line with slope 2/3 and y intercept 9?

A) y=2/3x
B) y=9x
C) y=2/3x+9
D) y=9x+2/3 (My Choice)

What is an equation in slope-intercept form for the line that passes through the points (1, –3) and (3, 1)?

A) y=3x+1
B) y=x-3
C) y=2x+5
D) y=2x-5

1. as

these are all wrong but four

2. Henry

2. (-2,-3), (1,1).
m = (y2-y1)/(x2-x1) = (1-(-3))/(1-(-2)) = (1+3)/(1+2) = 4/3.

4. 24/8 = y/10, Y = 30.

5. Y = (2/3)x + 9.

6. (1,-3), (3,1).
m = (1+3)/(3-1) = 2.
Y = 2x + b = -3.
2*1 + b = -3, b = -5.
Eq: Y = 2x - 5.

3. kapri

1. A. -2
2. D. 4/3
3. B. -2
4. B. 30
5. C. y=2/3x+9
6. D. y=2x-5

you're welcome

4. I do math sometimes

kapri is right! i got 100%

5. Chomper

Kapri is 100% correct

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