Let’s solve each of the four slope problems step by step.
---
Problem 1: Points (18,3) and (2,19)
Step 1: Assign coordinates
Let’s say:
x₁ = 18, y₁ = 3
x₂ = 2, y₂ = 19
Step 2: Use slope formula
m = (y₂ - y₁) / (x₂ - x₁)
= (19 - 3) / (2 - 18)
= 16 / (-16)
= -1
✔ Final answer for Problem 1:
m = -1
---
Problem 2: Points (0, -19) and (3, -4)
Step 1: Assign coordinates
x₁ = 0, y₁ = -19
x₂ = 3, y₂ = -4
Step 2: Use slope formula
m = (y₂ - y₁) / (x₂ - x₁)
= (-4 - (-19)) / (3 - 0)
= (-4 + 19) / 3
= 15 / 3
= 5
✔ Final answer for Problem 2:
m = 5
---
Problem 3: Points (12,9) and (17,5)
Step 1: Assign coordinates
x₁ = 12, y₁ = 9
x₂ = 17, y₂ = 5
Step 2: Use slope formula
m = (y₂ - y₁) / (x₂ - x₁)
= (5 - 9) / (17 - 12)
= (-4) / 5
= -4/5
✔ Final answer for Problem 3:
m = -4/5
---
Problem 4: Points (-2,20) and (2,11)
Step 1: Assign coordinates
x₁ = -2, y₁ = 20
x₂ = 2, y₂ = 11
Step 2: Use slope formula
m = (y₂ - y₁) / (x₂ - x₁)
= (11 - 20) / (2 - (-2))
= (-9) / (2 + 2)
= -9 / 4
✔ Final answer for Problem 4:
m = -9/4
---
Final Answer:
Problem 1: m = -1
Problem 2: m = 5
Problem 3: m = -4/5
Problem 4: m = -9/4
Parent Tip: Review the logic above to help your child master the concept of finding slope from two points on a graph worksheet.