Question

HELP HELP HELP
Quick algebra 1 questions

Answer 1

Hello:

Okay, this problem should be taken in a series of steps:

What is the slope's formula?

`\rm\hookrightarrow (y_2-y_1)/(x_2-x_1)`

• (x₁,y₁) -- first point
• (x₂,y₂) -- second point

Okay, now let's use this knowledge

10. (5,-19) and (-5,21)

`Slope = (21--19)/(-5-5) =(40)/(-10)=-4`

11. (12,1) and (12, -1)

`Slope = (-1-1)/(12-12) =(-2)/(0)`

12. (8,7) and (4,7)

`Slope = (7-7)/(4-7) =0`

Answer:

• Question 10: -4
• Question 11: undefined
• Question 12: 0

Hopefully that helps!