Answer:
i think it's c, I could be wrong djxndnxmmx
y = 7
x = 4 is a vertical line parallel to the y- axis passing through all points with an x- coordinate of 4
A line perpendicular to x = 4 will be a horizontal line parallel to the x- axis with equation y = c where c is the value of the y- coordinate the line passes through.
line passes through (5 , 7) with y- coordinate 7
The equation is therefore y = 7
Answer:

Step-by-step explanation:
From the question we are told that:
Sample size 
Mean 
Standard deviation
Significance Level 
From table
Critical Value of 
Generally the equation for momentum is mathematically given by




Here’s the answer, hope it helps. Btw these are screenshots from someone else’s work not mine