Answer:
The slope is -1/8 and the y intercept is 7/6
Step-by-step explanation:
This equation is in slope intercept form
y = mx+b where m is the slope and b is the y intercept
y = -1/8 x + 7/6
The slope is -1/8 and the y intercept is 7/6
Answer:
- All points are applicable apart from the second
Step-by-step explanation:
<u>One point and the slope of the line
</u>
<u>One point
</u>
<u>One of the intercepts and the slope of the line
</u>
-
Yes, it is equivalent to first option
<u>Both the intercepts
</u>
-
Yes, it is equivalent to two points
<u>Two points</u>
First, find the z-score:
z = (value - mean) / sdev
= (275 - 280) / 15
= - 0.33
In order to use a standard normal table, we need a positive z-score:
P(z < -0.33) = 1 - P(z < 0.33)
Looking at the table, we find P(z < 0.33) = 0.6293
Therefore:
P(z < -0.33) = 1 - 0.6293 = 0.3707
Hence, you have a probability of about 37% <span>that a randomly selected pregnancy lasts less than 275 days.</span>
We simply replace a with -9
k(-9) = 4 * -9 - 4
k(-9) = -40
:)
