PLZ HElP -- Examine these quadratic graphs. The black parabola is the parent function, y = x2, which is actually in the vertex f
orm of a quadratic equation. The other four graphs are generated by manipulating this parent function. You know what each term means in this vertex form: y = a(x - h)2 + k . You know about the maximum and the minimum of a quadratic.
Task 1:
1. Use the vertex formula, and find how you can get the parent equation y = x2. 2. Select one of the colored graphs. Using your knowledge about the vertex formula and the quadratics, including the maximum and the minimum, determine the equation of the graph you selected.
3. Write the equation in vertex form.
4. Use Desmos to graph the equation to check the accuracy.
Task 2:
1. Post your equation.
2. In your post, include the following elements:
- Which one of the colored graphs the equation represents.
- The reason why you picked the graph to write the equation among the four graphs.
- The detailed process you took to come to the equation you wrote. (Explain in the way other people can follow to write the equation.)
- Why the equation can represent the graph of your choice in detail. Use what you know about the quadratics and their graphs to convince the readers that the equation actually represents the graph without having them use the graphing calculator.
Task 1:
1. Use the vertex formula, and find how you can get the parent equation y = x2. 2. Select one of the colored graphs. Using your knowledge about the vertex formula and the quadratics, including the maximum and the minimum, determine the equation of the graph you selected.
3. Write the equation in vertex form.
4. Use Desmos to graph the equation to check the accuracy.
Task 2:
1. Post your equation.
2. In your post, include the following elements:
- Which one of the colored graphs the equation represents.
- The reason why you picked the graph to write the equation among the four graphs.
- The detailed process you took to come to the equation you wrote. (Explain in the way other people can follow to write the equation.)
- Why the equation can represent the graph of your choice in detail. Use what you know about the quadratics and their graphs to convince the readers that the equation actually represents the graph without having them use the graphing calculator.
1 answer:
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Answer:
D
Step-by-step explanation:
Δ ABC and Δ RSC are similar triangles, thus the ratio of corresponding sides are equal, that is
=
, substitute values
=
= 3 ( multiply both sides by 5 )
BC = 5 × 3 = 15 → D
Answer:
There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women
Step-by-step explanation:
The correlation coefficient between the variables h(height in inches) and pulse rates (in beats per minute) is 0.202
Sample size n=40
Level of significane alpha = 0.01
Create null and alternate hypothesis as:
H0: r=0
Ha: r not equal 0
(Two tailed test at 1% significance level)
Sample r = 0.202
r difference = 0.202
test statistic t =
df =n-2 =38
t critical value for 0.01 and df =38 is 2.704
Since our test statistic lies below 2.704, we accept null hypothesis
There is not sufficient evidence to support the claim that there is a linear correlation between the heights and pulse rates of women