Year 9 - Changing the subject of a formula

Make 'd' the subject given:
s = d ÷ t

• d = s + t
• d = 2s + 1
• d = st
• d = s - t

Solve for 'r' if:
2r + 1 = 15

• r = -7
• r = - 4
• r = 8
• r = 7

 $ax+r\ =\ 7\ \ Solve\ for\ r.$  

•  $r=\frac{7}{ax}$  

•  $r=7-ax$  

•  $r=7+ax$  

•  $r=7ax$  

Tags

CCSS.HSA.CED.A.4

Solve for a.

• $a=pw$

• $a=\frac{p}{w}$

• $a=\frac{w}{p}$

• $a=w+p$

Tags

CCSS.HSA.CED.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

 $8x+4y=16$  

Solve for y:

•  $y=-8x+16$  

•  $y=2x-4$  

•  $y=-2x+4$  

•  $y=-8x+12$  

Tags

CCSS.6.EE.C.9

Solve for 'b' if:
(3b + 6) = 12

• b = 6
• b = 2
• b = ½
• b = ⅙

 $Make\ x\ the\ subject\ of\ the\ formula\ \sqrt{\frac{m}{x}}=n.$  

•  $x=\frac{m}{n}$  

•  $x=\frac{m}{n^2}$  

•  $x=\frac{n^2}{m}$  

•  $x=mn^2$  

Tags

CCSS.HSA.CED.A.4

Make p the subject of the formula  $d=\frac{p}{1+p}$  .

•  $p=\frac{d}{1+d}$  

•  $p=\frac{d}{1-d}$  

•  $p=\frac{1+d}{d}$  

•  $p=\frac{1-d}{d}$  

 $S=\pi h\left(R+r\right)$  

•  $\frac{S}{\pi h}-R$  

•  $\frac{S}{\pi h}+R$  

•  $R-\frac{S}{\pi h}$  

•  $\frac{S-R}{\pi h}$  

Make the g the subject: $m=2c+g$  

•  $g=m+2c$  

•  $g=m-2c$  

•  $g=2mc$  

•  $g=2m-c$