0 reads0 ratings0 helpful
If (y=9+3.5x), what is (y) at (x=6)?
Advertisement
Answer and explanation
Correct answer: 30
Substitute x=6 in the given equation: y=9+3.5(6)=9+21=30. Therefore, the correct answer is 30. Option 27 would result from using 9+3.5×5, so it is not correct for x=6. Exam tip: After substitution, perform multiplication before addition or subtraction.
Frequently asked questions
What is the correct answer to this question?
30
Why is this the correct answer?
Substitute x=6 in the given equation: y=9+3.5(6)=9+21=30. Therefore, the correct answer is 30. Option 27 would result from using 9+3.5×5, so it is not correct for x=6. Exam tip: After substitution, perform multiplication before addition or subtraction.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Introduction to Polynomials. Topic: Linear growth and decay.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement