First we need to find the slope of the linear function. To do so, we can use the following equation:
m = (y1 - y2) / (x1 - x2)
where (x1, y1) and (x2, y2) are the two points.
In this case, time in hours is along the x-axis, and money in dollars is along the y-axis.
The two points are (4 hours, $180) and (6 hours, $280). Now plug the values into the slope equation:
m = (180 - 280) / (4 - 6) = (-100)/(-2) = 100/2 = 50.
Now plug one of the points and the slope into the equation for point-slope form:
y - y1 = m (x - x1)
y - 180 = 50(x - 4)
Solve for y to get the equation in slope intercept form:
y - 180 = 50x - 200
ANSWER:
y = 50x - 20
That one I will quite don't understand be more specific
Answer:
y + 20 = 9(x + 2)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 2, - 20) and (x₂, y₂ ) = (9, 79)
m = = = 9
Using (a, b) = (- 2, - 20), then
y - (- 20) = 9(x - (- 2)), that is
y + 20 = 9(x + 2)
Answer:
87°
Step-by-step explanation:
Answer:
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