Answer:
it is basically a rise, the 2 is positive so goes up from left to right, then a fall, bc -2 goes down from left to right
Step-by-step explanation:
Answer:
1. What is the most common number of sit-ups completed in 1 minute? Explain how you used the dot plot to identify this number.
A: On the chart the number 38 has the most plotted dots.
2. What is the spread of this data set
A: 34 - 42
3. According to this data set, is Avery's guess of 30 sit-ups per minute too low, too high, or about right? Explain.
A: 30 is a little too low, the lowest count on the chart is 34, and Avery's estimate was 30, meaning its too low.
- Kayla <3
Answer:
It’s a graph and we can’t help you but you can plug the equations into desmos (an online graphing calculator) to generate a line
Answer:
y = 
x² - 7
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (0, - 7), thus
y = a(x - 0)² - 7
To find a substitute (4, - 3) into the equation
- 3 = a(4 - 0)² - 7, that is
- 3 = 16a - 7 ( add 7 to both sides )
4 = 16a ( divide both sides by 16 )
a = , thus
y = x² - 7
Answer:
20 m by 10 m
Step-by-step explanation:
let w be width and l be length , then
2(l + w) = 60 ( divide both sides by 2 )
l + w = 30 ( subtract w from both sides )
l = 30 - w → (1)
lw = 200 → (2)
Substitute l = 30 - w into (2)
w(30 - w) = 200 ← distribute parenthesis on left side
30w - w² = 200 ( subtract 200 from both sides )
30w - w² - 200 = 0 ( multiply through by - 1 )
w² - 30w + 200 = 0 ← in standard form
(w - 10)(w - 20) = 0 ← in factored form
Equate each factor to zero and solve for w
w - 10 = 0 ⇒ w = 10
w - 20 = 0 ⇒ w = 20
Substitute these values into (1)
l = 30 - 10 = 20
l = 30 - 20 = 10
dimensions of field is 20 m by 10 m
