click below
click below
Normal Size Small Size show me how
chapter3
Chapter3
Question | Answer |
---|---|
Slope-intercept form | Is an equation for a line. EQ)y=mx+b or f(x)=mx+b |
Linear function | Is a function with an equation of the form y=mx+b |
Theorem | If 2 lines have the same slope,then they are parallel. |
Linear combination | All variables are to the first power and are not multipulied or divided by each other. EX)20P+32L |
Standard form of an equation for a line | EQ)Ax+By=C when A and B are not both zero. EX)A=0.2 and B=0.3 eqals the equation 0.2x+0.3y=9 |
Oblique lines | Only oblique and horizontal lines can be written in slope-intercept form. eq)Ax+By=C(A can not equal 0 and neither can B. |
Horizontal lines | EQ)y=k slope=0 |
Vertical lines | EQ)x=h slope undefined |
Point-slope Theorem | If a line contains (x1,y1) and has slope m,then it has equation y-y1=m(x-x1). |
Arithmetic sequence | A sequence with a constant difference of 3000 between successive terms. EQ)(nth term of an arithmetic sequence)an=a1+(n-1)d |
Greatest-integer symbol | [x]=the greatest integer less than or equal to x. |