Answer:
4 is c; 5 is a
Step-by-step explanation:
Given points for 4: (7, 2), (11, 5)
Given info for 5: (-2, -8); slope of 3
point-slope formula: y2 - y1 = m(x2 - x1)
Plugging in points: 5 - 2 = m(11 - 7)
Now we solve for m.
3 = m4
Final step: divide both sides by 4
Answer: m = 3/4
Second equation!
Plug into point-slope formula: y + 8 = 3(x + 2)
Distributive property of equality to eliminate parentheses
y + 8 = 3x + 6
Get y by itself by subtracting 8 to both sides
y = 3x - 2