it's was good coz had friends around right now it's bad I have to teach my little one and sometimes I get really confused all the same am good
Answer:
Step-by-step explanation:
This function should have a form similar to
The function that reminds me the most of the function that is drawn on the grid is the following function......
The constant of proportionality k is 3.5
Step-by-step explanation:
Proportionality describes any relationship that is always in the same
ratio
If two quantities x and y are in proportionality, then
1. y ∝ x
2. y = k x , where k is the constant of proportionality
∵ x ⇒ 6 , 7 , 8 , 9
∵ y ⇒ 21 , 24.5 , 28 , 31.5
∵ y ∝ x
∴ y = k x
- Use x = 6 and y = 21 to find the value of k
∵ x = 6 and y = 21
∴ 21 = k (6)
- Divide both sides by 6
∴ k = 3.5
- Use x = 7 and y = 24.5 to find the value of k
∵ x = 7 and y = 24.5
∴ 24.5 = k (7)
- Divide both sides by 7
∴ k = 3.5
- Use x = 8 and y = 28 to find the value of k
∵ x = 8 and y = 28
∴ 28 = k (8)
- Divide both sides by 8
∴ k = 3.5
- Use x = 9 and y = 31.5 to find the value of k
∵ x = 9 and y = 31.5
∴ 31.5 = k (9)
- Divide both sides by 9
∴ k = 3.5
The constant of proportionality k is 3.5
Learn more:
You can learn more about proportionality in brainly.com/question/10708697
#LearnwithBrainly
Answer:
1 3/4
Step-by-step explanation:
5/4 + 1/2
Get a common denominator of 4
5/4 * 1/2 *2/2
5/4 + 2/4
7/4
Rewriting as a mixed number
4/4 + 3/4
1 3/4
Answer:
<em>Vertex; ( - 1 / 2, 5 3/4 )</em>
Step-by-step explanation:
No need for a calculator, take a look at the procedure below;
The vertex of an up - down facing parabola of the form y = ax^2 + bx + c is x = -b / 2a;
The parabola params are given to be 1, 1, and 6, such that;
x = - 1 / 2 * 1,
x = - 1 / 2,
Now plug in this value of x into the quadratic function as to solve for y;
y = ( - 1 /2 )^2 - 1 /2 + 6,
y = 1 / 4 + 5 1 / 2,
y = 5 3/4
Thus the vertex has a minimum of ( - 1 / 2, 5 3/4 ),
<em>Vertex; ( - 1 / 2, 5 3/4 )</em>
