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Lesson 1-9 ♦ Solutions of a Two-Variable Equation
Tell whether the given ordered pair is a solution of the equation.- 4y+2x=3;(1.5,0) 2. y = 7x - 5; (0, 5) 3. y = -2 x + 5; (2 ,1)
Lesson 2-5 # Transforming Equations
Solve each equation for y.- 2y - x = 4 5. 3x = y + 2 6. —2 y - 2x = 4
Lesson 2-6 # Comparing Unit Rates
- Transportation A car traveled 360 km in 6 h. A train traveled 400 km in 8 h. A boat
traveled 375 km in 5 h. W hich h a d th e fastest average speed? - P l a n t s A birch tree grew 2.5 in. in 5 m onths. A b e a n p lan t grew 8 in. in 10 m onths.
A rose b u sh grew 5 in. in 8 m onths. W hich grew th e fastest?
Lesson 4-4 # G raphing a Function Rule
Make a table of values for each function rule. Then graph each function.- /(x ) = x + 3 10. /(x) = — 2x 11. / ( x ) = x - 4
Lesson 4-7 # Arithmetic Sequences
Write an explicit formula for each arithmetic sequence.
12.2,5,8,11,... 13.13,10,7,4,... 14. -3 , -0.5, 2, 4.5,...Lo o k i n g A h ead V o cab u l ar y
- A steep hill has a greater slope th a n a flat plain. W hat does th e slope of a line on a
graph describe? - Two streets are parallel w h en they go th e sam e way an d do n o t cross. W hat does it
m ean in m ath to call two lines parallel? - John was bringing a m essage to the p rin cip al’s office w h e n th e principal
intercepted him a n d took th e m essage. W hen a graph passes thro u g h th e y-axis, it
has a y-intercept. W hat do you th in k a y -in te rc e p t of a graph represents?
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