One solution is
y ≥ 2x - 3
Weight to the nearest pound of 17 cats:10, 15, 9, 8, 11, 10, 9, 8, 13, 9, 12, 10, 13, 11, 9, 12, 10
Vitek1552 [10]
Answer:
Step-by-step explanation:
+ si
Question:
The quantities x and y are proportional.
x y
5.8 7.5
11.2
Find the constant of proportionality (r) in the equation y=rx
Answer:
The constant of proportionality is 75/58 or 1.29
Step-by-step explanation:
Given
The table above
Required
Find the constant of proportionality
The question has an incomplete table but it can still be solved because x and y are proportional.
Given that
y = rx
Make r the subject of formula
Divide through by x
y/x = rx
y/x = r
r = y/x
When y = 7.5, x = 5.8
Substitute these values
r = y/x becomes
r = 7.5/5.8
Multiply denominator and numerator by 10
r = (7.5 * 10)/(5.8 * 10)
r = 75/58
In this case, it's best to leave the answer in fraction.
However, it can be solved further.
r = 75/58
r = 1.29 (Approximated)
Hence, the constant of proportionality is 75/58 or 1.29
Answer:
equation is the best model of the data: y=0.5x+2.4
Step-by-step explanation:
y=2.8(1.1^x)
try two points (2,3.5) and(1,3)
find m=y2-y1/x2-x1
m=3-3.5/1-2=
m=0.5
find b at point 1,3
y=mx+b
3=0.5(1)+b
b=3-0.5
b=2.5