Answer:
Part A: y = 4.5x + 22
Part B: 31 inches
Step-by-step explanation:
Part A:
the y-intercept appear to be at 22
the slope can be found by using the points (0, 22) and (4, 39)
m = <u>39 - 22</u>
4 - 0
m = 17 / 4 = 4.3 and this is close to 4.5
Part B:
plug in 2 for 'x' in the equation: y = 4.5x + 22
y = 4.5(2) + 22
y = 9 + 22
y = 31
Answer:
<u>The equation to find the baby's birth weight is 0.1x + 2 = 2.8 and the weight is 8 pounds.</u>
Step-by-step explanation:
1. Let's check all the information provided to us to answer the question correctly:
Weight that a baby gains in the first 6 weeks after birth = 10% + 2 pounds
Weight that a baby gains in the first 6 weeks after birth = 2.8 pounds
2. Write an equation to find the baby’s birth weight, x.
Baby's birth weight = x
Baby'
0.1x + 2 = 2.8
0.1x = 2.8 - 2
0.1x = 0.8
x = 8
<u>The equation to find the baby's birth weight is 0.1x + 2 = 2.8 and the weight is 8 pounds.</u>
The steepness of a slope is determined by the magnitude of the coefficient. Taking the absolute value of all of our numbers, 12 is the greatest in magnitude.
Therefore, the steepest slope is the slope with 12.
You are given
a commission of $10 for $100 in sales. You are to find the commission for $150
in sales. It is stated in the problem that the salesman’s commission varies
directly as his sales. Directly means proportional, and so this relationship has
a constant. Let us say the salesman commission is c and his sales is s. Let us
also denote k as our constant.
C = ks
$10 = k($100)
k = 0.1
We need to find
the salesman commission in $150 sales.
C = ks
C = (0.1)($150)
<u>C = $15</u>