The graph below shows the number of open blossoms in a nursery and the number of hours after dawn. The equation of the line of b
est fit is below. y=20x+3
What does the y-intercept represent?
a: The number of blossoms open at dawn.
b:There were three blossoms open at dawn.
c:The number of blossoms open per hour.
d:There were twenty-three blossoms opening per hour.
What does the y-intercept represent?
a: The number of blossoms open at dawn.
b:There were three blossoms open at dawn.
c:The number of blossoms open per hour.
d:There were twenty-three blossoms opening per hour.
2 answers:
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Answer:
Step-by-step explanation:
a). For function 'f',
Slope of a linear function passing through two points and
is given by,
Slope =
For the function 'f' given in the table,
Slope of the linear function passing through two points (-1, -5) and (0, -1) given in the table,
Slope =
= 4
Equation of the line passing through a point (0, -1) and slope = 4 will be,
y - y' = m(x - x')
y + 1 = 4(x - 0)
y = 4x - 1
f(x) = 4x - 1
For function 'g',
Equation of the function 'g' has been given as,
g(x) = 4x + 3
By comparing this equation with the slope-intercept equation of a line,
y = mx + b
Therefore, slope of the function 'g' is,
m = 4
Since slopes of both the functions are same, linear graphs of both the functions will be parallel.
b). Equation of the function 'f' is,
f(x) = 4x - 1
y-intercept of the function = -1
Equation of function 'g',
g(x) = 4x + 3
y-intercept = 3
Therefore, function 'g' will have the greater y-intercept.