Y = 4x
(-2,y).....x = -2
y = 4(-2)
y = -8
Answer:
-2.5
Step-by-step explanation:
Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test
To calculate the z-score, we need to use a mathematical formula
Mathematically;
z-score = (x - mean)/SD
From the question;
x = 76
mean = 86
standard deviation SD = 4
Plugging these values in the equation, we have;
z-score = (76-86)/4 = -10/4 = -2.5
-2/25 is the slope
x1=4
hope this helps!
Answer:
15
Step-by-step explanation:
X/4+7=y
x being your "number" and y being the answer
