Line CD passes through points C(1, 3) and D(4, –3). If the equation of the line is written in slope-intercept form, y = mx + b,
2 answers:
Answer:
b = 5
Step-by-step explanation:
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = C(1, 3) and (x₂, y₂ ) = D(4, - 3)
m = =
= - 2, hence
y = - 2x + b ← is the partial equation of the line
To find b substitute either of the 2 points into the partial equation
Using (1, 3), then
3 = - 2 + b ⇒ b = 3 + 2 = 5
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Answer:
We inject 60.9628 milliliters of dosage.
Step-by-step explanation:
Given : You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed as 500 ug/ml. The patient's chart Hosts weight as 168 pounds.
To find : How many milliliters (= cc) are you to inject?
Solution :
We know that,
1 pound = 0.453592 kg,
Patient's weight = 168 pounds
Patient's weight in kg = kg
The dosage is 0.4 mg per kilogram of bod.
So, dosage of patient weight =
We know, 1 micro gram = 0.001 mg
Concentration of drug is given by,
Now we are supposed to find milliliters inject,
So, milliliters of dosage required to inject is
Therefore, We inject 60.9628 milliliters of dosage.