For the equation of the line of the form y = mx + b, m is the slope of the line and b is the y-intercept which is the value of y when x is equal to zero. The slope is the rate of change of y per change in x. "y" would represent the dependent variable which is the weight of the baby while "x" represents the independent variable which is the number of months or the age of the baby in months. We calculate the slope as follows:
slope = (11 - 9) / ( 4 - 0) = 2/4 = 0.5
at x = 0, it is said that the weight of the baby is 9 lbs so the value of b would be 9.
The equation of the line would be y = 0.5x + 9
We can divide the 300 by 900 to get the decimal equivalent of the percentage 300/900 = 1/3 = .33333
multiply that by 100 gives you a percentage of 33.33% increase in mark-up
hope this help
1. IQR = Q3 - Q1 = 35 - 20 = 15
A. 15
3. The ages include 20 and 25 so A and C are out, and the ages are between the two ages
B. a >= 20 and a <= 25
4. With the addition of 30, there are now 14 dots. Therefore, the median will be the mean of the 7th and 8th dots from least to greatest on the number line. In this case, it would still be 22.
C. The median would stay the same.
Define an exponential function, h(x), which passes through the points (1,16) and
(5, 1296). Enter your answer in the form axb^x
the equation is of the form
we have
point (1,16)
so
For x=1, y=16
substitute
isolate the variable a
Point (5,1296)
For x=5, y=1,296
substitute
substitute equation 1 in equation 2
solve for b
Find the value of a
a=16/3
therefore
the equation is
see the attached figure to better understand the problem
