5th Direct variation & systems

In a direct variation, y = 39 when x = 3. 
Find the value of y when x = 2.

• 26
• 3
• 58.5
• 2

The value of y varies directly with x.  Which function represents the relationship between x and y if y = 14 when x = 6. 

• y=20x
• y=84x
• y=7/3x
• y=3/7x

Is this a direct variation?

• yes
• no

Which of the given graphs is a direct variation?

• A
• B
• C
• D

What ordered pair does a direct variation always go through when graphed?

• (0, 0)
• (1, 0)
• (0, 1)
• (1, 1)

Write an equation of a line perpendicular to
y = 2/7x - 5 through (2, -3)

• y = -7/2x + 4
• y = -4x - 7/2
• y = 4x - 7/2
• y = 7/2x + 4

Write an equation of a line parallel to y = x + 3 through (5, 3) 

• y = x + 2
• y = -2x + 1
• y = 2x + 1
• y = x - 2

What is the solution to this system?

• (1, -1)
• (-1, 1)
• (0, -2)
• (2, 0)

When you graph the exact same equation twice,

• you will have no solution. 
• you will have one solution.
• you will have infinite solutions. 
• you will graph a giraffe. 

How many solutions will this system have? 

• No solution
• One Solution
• I Don't Know
• Infinitely Many Solutions