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Check even answersp.23: 6. 8. 24. -5/9 26. -1/3 28. none
(sketch graphs also) 30. 2/ no zeros: f(x) = 5 infinite zeros f(x) = 0
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Notes: 1-4 Linear Equations
positive slope negative slope slope = 0 no slope (undefined)
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Point-slope form of a line:
Slope-intercept form of a line:
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Standard form of a line: ax + by + c = 0 a,b,c = constants a = whole number (positive)
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y=2x+3 is parallel to -2x+y=7
Notes: Types of Lines Parallel lines: slopes are the same y=2x+3 is parallel to -2x+y=7 Perpendicular lines: slopes are “negative reciprocals”
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coinciding lines: have the same graph
coinciding lines: have the same graph. One equation is a multiple of another. 2x – y + 8 = 0 4x – 2y + 16 = 0
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Given: a line that passes through (5,2) and (7,9)
p.30 #8 write equation of line in slope intercept form and in standard form. Given: a line that passes through (5,2) and (7,9)
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Given: a line that passes through (5,2) and (7,9)
p.30 #8 write equation of line in slope intercept form and in standard form. Given: a line that passes through (5,2) and (7,9)
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