Use point-slope form y − y₁ = m(x − x₁)
9th grade (Year 10 in England) · 16 questions · Common Core: HSA.CED.A.2, HSF.LE.A.2 · England: GCSE Higher Algebra
Name
Date
Score/ 16
Question 1
Write y − 1 = (x − 6) in the form y = mx + b. Type the right-hand side.
Answer
Question 2
Which equation is the line through (−1, −1) with slope −3?
- A. y + 1 = 3(x + 1)
- B. x + 1 = −3(y + 1)
- C. y − 1 = −3(x − 1)
- D. y + 1 = −3(x + 1)
Question 3
Fatima's phone plan costs 5 more for each extra gigabyte of data. A month with 11 GB costs 72. Using cost = m × GB + b, find b, the fixed monthly charge.
Answer
Question 4
Write y − 1 = −3(x − 4) in the form y = mx + b. Type the right-hand side.
Answer
Question 5
Which equation is the line through (6, 1) with slope 5?
- A. y − 6 = 5(x − 1)
- B. y − 1 = −5(x − 6)
- C. y − 1 = 5(x − 6)
- D. x − 6 = 5(y − 1)
Question 6
Liam's phone plan costs 6 more for each extra gigabyte of data. A month with 10 GB costs 79. Using cost = m × GB + b, find b, the fixed monthly charge.
Answer
Question 7
Write y − 2 = −2(x + 1) in the form y = mx + b. Type the right-hand side.
Answer
Question 8
Which equation is the line through (3, 1) with slope −3?
- A. y + 1 = −3(x + 3)
- B. x − 3 = −3(y − 1)
- C. y − 3 = −3(x − 1)
- D. y − 1 = −3(x − 3)
Question 9
Aisha's phone plan costs 2 more for each extra gigabyte of data. A month with 9 GB costs 40. Using cost = m × GB + b, find b, the fixed monthly charge.
Answer
Question 10
Write y + 3 = 2(x − 3) in the form y = mx + b. Type the right-hand side.
Answer
Question 11
Which equation is the line through (5, −2) with slope −5?
- A. y + 2 = −5(x − 5)
- B. y + 2 = 5(x − 5)
- C. x − 5 = −5(y + 2)
- D. y − 2 = −5(x + 5)
Question 12
Kwame's phone plan costs 5 more for each extra gigabyte of data. A month with 5 GB costs 48. Using cost = m × GB + b, find b, the fixed monthly charge.
Answer
Question 13
Write y − 6 = 3(x − 2) in the form y = mx + b. Type the right-hand side.
Answer
Question 14
Which equation is the line through (−5, 6) with slope 2?
- A. y + 6 = 2(x − 5)
- B. y + 5 = 2(x − 6)
- C. y − 6 = 2(x + 5)
- D. x + 5 = 2(y − 6)
Question 15
Grace's phone plan costs 2 more for each extra gigabyte of data. A month with 3 GB costs 14. Using cost = m × GB + b, find b, the fixed monthly charge.
Answer
Question 16
Write y − 3 = 5(x − 3) in the form y = mx + b. Type the right-hand side.
Answer
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