Change the subject

If m = 3, x = 2, and c = 1, calculate y:
y = mx + c

• 7
• 6
• 5
• 8

If m = 3, c = 5 and y = 11, calculate x:
y = mx + c

• x = 2
• x = 38
• x = 8.67
• x = -2.67

Make a the subject of
a + b = c

• a = c - b
• a = b - c
• a = b + c
• a = bc

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Make a the subject of
a + b = c + d

• a = c + d - b
• a = b + c + d
• a = b + c - d
• a = c - b - d

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Make w the subject of 
A = lw

• w = A/l
• w = l/A
• w = A - l
• w = Al

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

Make x the subject of y = mx + 1

• x = (y - 1)/m
• x = y - 1/m
• x = y/m - 1
• x = my - 1

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

Make x the subject of y = mx + c

• x = (y - c)/m
• x = y - c/m
• x = y/m - c
• x = my + c

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.B.3

CCSS.HSA.SSE.B.3

Make x the subject:
N = (180 + x)/2

• x = 2N -180
• x = N - 180
• x = N/2 -180
• x = N -180/2

Make r the subject:
C = 2πr

• r = C/2π
• r = C - 2π
• r = 2πC
• r = Cπ/2

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

Make r the subject:
A = πr²

• r = √(A/π)
• r = √Aπ
• r = Aπ²
• r = (Aπ)²