Algebra Relations and Functions

Suppose y varies inversely with x.
If y = 150 when x = 2, find y when x = 25.

• 300

• 75

• 1,875

• 12

Which of the following represents direct variation?

• y = kx

• y = k/x

• y = x/k

• y = mx + b

What is the RANGE of this graph?

• -7 < x < 5

• -7 ≤ y < 5

• -3 < x < 1

• -3 ≤ y < 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the DOMAIN of this graph?

• -4 ≤ x ≤ 3

• -1 ≤ x ≤ 4

• 4 < x < 3

• -1 < x < 4

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the Domain?

• y ≥ 6

• -10 ≤ y ≤ 6

• -10 ≤ x ≤ 6

• All real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the RANGE of this graph?

• y < -3

• y ≤ -3

• y > 1

• y ≥ 1

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain of the graph?

• {-4, 0, 2, 4}

• {-5, -4, -3, -1}

• {-5, -4, -3, -1, 0, 2, 4}

• All real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the range?

• {-2,2,5}

• {1,3,5,6}

• all real numbers 

• -2<y<5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Solve -2 = 4r + s for s.

• s = -2 + 4r

• s = 2 - 4r

• s = -2 - 4r

• s = 2 + 4r

Tags

CCSS.6.EE.C.9

Solve for x:

• x = yb - v

• x = by - v

• x = by + v

Tags

CCSS.HSA.CED.A.4