Answer:
у = x² + 7x - 30
Step-by-step explanation:
x₁ = 3 and x₂ = -10
Use the formula (x - x₁)(x - x₂) = 0
(x - 3)(x - (-10)) = 0
(x - 3)(x + 10) = 0
x² + 10x - 3x - 30 = 0
x² + 7x - 30 = 0
Answer:
y = - 5
Step-by-step explanation:
y = 4 is a horizontal line parallel to the x- axis
A parallel line must therefore be a horizontal line with equation
y = c
where c is the value of the y- coordinates the line passes through.
The line passes through (1, - 5) with y- coordinate - 5, thus
y = - 5 ← equation of parallel line
Answer:
Mean: 67
Median: 66
Mode: no mode
Range: 14
Step-by-step explanation:
Answer:
where is model A
Step-by-step explanation:
A scatterplot has a positive, linear correlation means that the relationship x and y is positive and increasing with equal changes in both x and y.
For example there will be positive linear correlation between height and weight. If height will increase then weight will also increase. So, height and weight is positively correlated to each other.
And if the changes of height as well as change of weight will be equal then it will be linear also. Like if height of a person is increasing as 120 cm, 122 cm, 124 cm and so on and their corresponding weight is 50 kg, 51 kg, 52 kg etc then it's showing a positive, linear correlation.