Slope(m) = -2 hope this helps
Step-by-step explanation:
Let's say b is the rate of the boat in still water, and c is the rate of the current.
Distance = rate × time
Going upstream:
100 = (b − c) (5)
20 = b − c
Going downstream:
100 = (b + c) (2)
50 = b + c
Solve the system of equations using substitution or elimination. Using elimination, add the equations together:
70 = 2b
b = 35
c = 15
The boat's speed is 35 km/h, and the current's speed is 15 km/h.
Answer:
y = -1/2x+7
Step-by-step explanation:
First find the slope using the slope formula
m = ( y2-y1)/(x2-x1)
= (3-5)/( 8-4)
= -2/4
= -1/2
The slope intercept form is
y = mx+b where m is the slope and b is the y intercept
y = -1/2x+b
Substitute a point into the equation
3 = -1/2(8) +b
3 = -4+b
Add 4 to each side
3+4 = -4+b+4
7 = b
y = -1/2x+7
F(x) = 4x-1, so the y-intercept is 4(0)-1 = -1
g(x) = x+2, so the y-intercept is (0)+2= 2
<span>(B) The function g(x) has a higher y-intercept.
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