Which of the following correctly expresses y as the subject of the formula $3x - 4y - 1 = 0$?
A - HSC - SSCE Mathematics Standard - Question 11 - 2019 - Paper 1
Question 11
Which of the following correctly expresses y as the subject of the formula $3x - 4y - 1 = 0$?
A. $y = \frac{3}{4} - 1$
B. $y = \frac{3}{4} + 1$
C. $y = \frac{3x -... show full transcript
Worked Solution & Example Answer:Which of the following correctly expresses y as the subject of the formula $3x - 4y - 1 = 0$?
A - HSC - SSCE Mathematics Standard - Question 11 - 2019 - Paper 1
Step 1
Rearranging the equation to isolate y
96%
114 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
Start with the original equation:
3x−4y−1=0
To isolate y, first move 3x and −1 to the other side:
−4y=−3x+1
Dividing through by -4 gives:
y=43x−1
Step 2
Identifying the correct option
99%
104 rated
Only available for registered users.
Sign up now to view full answer, or log in if you already have an account!
Answer
From the rearrangement steps, we find that the expression for y is:
