B shows her getting closer to home, immediately turning round, gives time for finding book then riding all the way home at a constant speed
Answer:
y = -2x -1
Step-by-step explanation:
slope intercept form is y = mx +b
m = slope, b = y intercept
point is given as ordered pair (x,y)
plug in slope into y=......
y= -2x+b
plug in the point
3 = -2 * (-2) + b
3= 4 +b subtract 4 on each side
b = -1
y = -2x -1
Step-by-step explanation:
I think it's 8 down again.
And 7 down.
8•7 = 56
• = Multiplication
A 45° sector is 1/8 of the area of the circle, so is (72π m^2)/8 = 9π m^2.