Bethel's Algebra Scribepost

Chapter 9  Review pg. 360-361

9.

a) The patterns are:
The x axis begins at 0 increases by 1
The y axis begins at 2 increases by 2
To get the x value to the y value you have to go by the equation 3x+2=y

b)

c) 3x + 2 = y
    3(2) + 2 = y
     6 + 2 = y
         8 = y

d) 3x + 2 = y
    3(5) + 2 = y
      15 + 2 = y
          17 = y

13.

a) d represents the distance in kilometres and t represents time in hour.

b) 15 represents the speed travelled by the cyclist.

c)
















d)

e) Yes because the cyclist can travel for just a portion of an hour.

f)    t15 = d
   (8)15 = d
      120 = d

Chapter 9 Practice Test pg. 362-363

6.

s = -4t + 2
s = -4(-1) + 2
s = +4 + 2
s = 6

10.

a)

b)

c)  Yes the relationship is linear because the points on the graph lie in a straight line.

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