Algebra 1 Spiral #4

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

• 26
• 3
• 58.5
• 2

Is this a direct variation?
y=2x

• yes
• no

Write an equation for this relationship.

• y=4x
• y=1/8x
• y=1/4x
• y=8x

Tags

CCSS.6.EE.C.9

Which of the given graphs is a direct variation?

• A
• B
• C
• D

What is the constant (k) in this inverse variation?
y = 400/x

• x
• y
• 400
• Not enough information given

The equation 
xy =  25  represents:

• direct variation
• inverse variation
• joint variation
• none of these

Which of the following is NOT a direct variation?

• y = -2x
• y = 1/2x
• 2x + 3y = 2
• 3y = 4x

What is the Domain?

• {-3, -1, 1, 3, 5, 7, 9}
• {-3, -2, -1, 0, 1, 2, 3}
• -3 ≤ x ≤ 3
• -3 ≤ x ≤ 9

What is the domain?

• {-4, -1, 0, 2, 7}
• {-5, -4, -1, 0, 1, 2, 4, 7}
• {-5, 0, 1, 2, 4}
• {5}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the Domain?

• -3 ≤ x < 5
• -3 ≤ y < 5
• -8 ≤ x < 5
• -8 ≤ y < 5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5