A quadratic function:
First, take the point (0,-4) and plug the values (x,y) into the equation:
So the equation is
.
Now plug the values of the other two points into the equation and set up a system of equation:
The function is:
Answer:
13,254
hope this helps :)
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Answer:
776 times
Step-by-step explanation:
- Find out how far a mile is in inches -> 1 mile = 63360 inches.
- Find out the circumference of the wheel (how far it will travel per revolution) C = πd = 26π = 81.68 inches.
- Divide the total distance by how far we go each revolution: 63360/ 81.68 = 775.71 revolutions.
- Therefore to the nearest revolution, the wheel turns 776 times.
Answer:
Step-by-step explanation:
0.04m²-n²=(0.2m)²-n²=(0.2m+n)(0.2m-n0
Answer:
Kendra should have multiplied the x-values by 75 to get the y-values
Step-by-step explanation:
Given
Table
X|| Y
1 || 75
2 || 150
3 || 225
4 || 300
5 || 375
Given that Kendra multiply x by 7.5 to get y
The relationship of x and y can be calculated as thus;
y = rx
Where y and x are the values at the y and x column respectively and r is the constant of proportionality
When y = 75, x = 1.
Plug in these values in the above formula
y = rx becomes
75 = r * 1
75 = r
r = 75
When y = 150, x = 2
150 = r * 2
Multiply both sides by ½
150 * ½ = r * 2 * ½
75 = r
r = 75
When y = 225, x = 3
225 = r * 3
Multiply both sides by ⅓
225 * ⅓ = r * 3 * ⅓
75 = r
r = 75
Notice that r remains 75 and the difference between y values is 75
If you apply these formula on when y = 300 or 375 and when x = 4 or 5, the constant of proportionality will remain The value of 75.
Hence, Kendra mistake is that; Kendra should have multiplied the x-values by 75 to get the y-values
