Answer:
y = 1/4x - 2
Step-by-step explanation:
If two lines are parallel to each other, they have the same slope.
The first line is y = 1/4x. Its slope is 1/4. A line parallel to this one will also have a slope of 1/4.
Plug this value (1/4) into your standard point-slope equation of y = mx + b.
y = 1/4x + b
To find b, we want to plug in a value that we know is on this line: in this case, it is (4, -1). Plug in the x and y values into the x and y of the standard equation.
-1 = 1/4(4) + b
To find b, multiply the slope and the input of x (4)
-1 = 1 + b
Now, subtract 1 from both sides to isolate b.
-2 = b
Plug this into your standard equation.
y = 1/4x - 2
This equation is parallel to your given equation (y = 1/4x) and contains point (4, -1)
Hope this helps!
Answer:
125-135
Step-by-step explanation:
The standard deviation is 7. This implies that the IQ scorings can be between 123 and 137. With a 90% confidence in these numbers, 125-135 is the closest interval to 90% confidence.
Answer:
27.5.
Step-by-step explanation:
These values are 5, 10, 15, 20, 25, 30, 35, 40, 45, 50.
The average = their sum / 10
= 275 / 10
= 27.5 .
Answer:
C. y = -2 + , y = -2 -
Step-by-step explanation:
Answer:
1 solution.
Step-by-step explanation:
consistent means it has at least 1 solution
independent means it only has 1 solution
so your answer is : 1 solution
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