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16 Cards in this Set
- Front
- Back
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How do you find b with only the slope and two lines |
Y=mx+b |
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How to find the slop of a line with only the 2 points given |
M=y2-y1 ÷x2-x1 |
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How do you relater y=mx+b to a word problem |
M is the variable cost X is the amount of people or things B is the fixed cost Y is the total cost. |
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How do you find the slope and y-intercept and graph it |
E.g.(given= y=3x-4) 3 is the slope 4 is the y intercept |
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Write an equation |
A pizza at monster pizza costs 12$ plus 1.75 per topping C total cost and t as in the number of toppings Answer: y=mx +b Y=1.75x+12.oo |
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How do you expand |
Multiply the number on the outside of the bracket by the equation inside the bracket. |
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How to you simplify |
You group all the variables together as in 2x+7x+5y+4y=c 9x+9y=c |
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Solve each of the following |
-4x+10=-6 -4x+10-10=-6-10 -4x=16 '''"4x''''' -x=4 X=-4 |
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Substitution |
Isolate the number beside the fraction Then isilate the denominator by multiplying both of the sides Then isolate to find x |
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Expanding |
-3c+5=5c+9 -3c+3c+5=5c+3c+9 5=8c+9 5-9=8c+9-9 -4=8c ''''''8''''' -1 =c ''2'' |
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Solving for x with a fraction in the equation |
Find the least common denominator and multiful each term by it Expand and collect likr terms Solve |
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Find x with 2 fractions |
Find the least common demoniator and multiply each term by it. Expand and collect like terms Solve |
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Convert equation from standard for to y=mx+b |
Re arrange the equation to make sure the y is on the left side and the x and single number are on the right. If y has a number once you have re arranged the equation divide each number by the number beside y |
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What is the quadratic relation |
Y=ax^2+bx+c |
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Equation of axis symetry |
If your trying to find the axis of symetry and the equation given is in standard form you use the y=ax^2+bx+c then you use x=-b/2a for the second step then sub the -b with bx |
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Min and max value |
Where the vertex point is facing up it is max when its facing down its min |
