Answer:
Johnny is incorrect because the slope is actually 6.
Step-by-step explanation:
To find the slope: m = [tex]\frac{y2 - y1}{x2 - x1}[/tex]
Step 1: Plug in the points
m = [tex]\frac{4 - 10}{4 - 5}[/tex]
m = [tex]\frac{-6}{-1}[/tex]
m = 6
Answer: Johnny is incorrect because the slope is actually 6.