Answer:
d =
Step-by-step explanation:
1) To solve for d, isolate it in the equation. So, to get rid of the with the d, add
to both sides.
Thus, d = .
Find the value of y for a given value of x, if y varies directly with x. If y = 2.52 when x = 8.4, what is y when x = 2.7? (1 p
2 answers:
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form
in this problem we have
so
<u>Find the value of the constant k</u>
substitute
the equation is equal to
<u>Find the value of y when </u>
substitute the value of x in the equation
therefore
<u>the answer is</u>
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Answer:
The x-coordinate of point P is 6
Step-by-step explanation:
we have
A (2,3) and B (8,0)
we know that
Point P portions the segment AB in the ratio 2 to 1
so
and
where
AP_x represent the distance between the points A and P in the x-coordinates
AB_x represent the distance between the points A and B in the x-coordinates
The x-coordinate of P is equal to
where
A_x represent the x-coordinate of A
substitute the values
therefore
The x-coordinate of point P is 6
C) 2
1) Given the table, let's find out that missing data picking 2 points (2,-10) and (6,-4)
Since we have the slope, let's work on finding the linear coefficient
plugging point (2,-10) into that:
y= mx +b
-10 =3/2(2) +b
-10 =6/2 +b
-10= 3 +b
-10-3 =b
b= -13
2) So the rule of that function is y= 3/2x -13
Plugging x= 10 we have
y= 3/2(10) -13
y=2
3) So the missing y-coordinate is 2.
