Math 8 Chapter 4 Practice Test - Davis School District Page 2
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6Use m & b to write the equation of a line in slope-intercept form.
16. y = _________________
17. y = _________________
18. y = ________________
m = 2/3 b = (0,9)
slope is -4 y-intercept is 17
Parallel to y=1/2x, b = (0,3)
19. y = _________________
20. y = _________________ 21. y = ________________
X
Y
4
9
0
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Write the equation in point-slope form: y – y
= m(x – x
)
1
1
5
23. m = 7 point = (-2,-4)
22. m =
point = (8,10)
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Write the equation in point-slope form first, THEN change it into slope-intercept form.
24. m = 7 point = (2,-5)
25. m = 2 point = (4,6)
26. (2, 6) & (1, 4)
27. (7, 12) & (4, 6)
28. (8, 2) & (5, 8)
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