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Find an equation of joint variation if P varies jointly as q r and s One set of values is p equals 70 Q equals 7 R equals 5 and S equals 4?
If P varies directly with q, r and s then P = kqrs, where k is a constant. As 70 = k x 7 x 5 x 4 = 140k : k = 70/140 = 1/2 The equation of joint variation is P = ½qrs.
How do you know if the equation is a direct variation?
When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation. y=2x is direct variation y=x+2 is not direct variation
Which variation is very sensitive to extreme values?
Any variation is very sensitive to extreme values!
These values are also called because they are the values at which the equation equals zero?
zeros values at which an equation equals zero are called roots,solutions, or simply zeros. an x-intercept occurs when y=o ex.) y=x squared - 4 0=(x-2)(x+2) (-infinity,-2)(-2,2) (2,infinity)
Find all integer values of x that make the equation or inequality true x2 equals 9?
that would be limited to 3 and -3 for values of x
Find an equation of joint variation if P varies jointly as q r and s One set of values is p equals 70 Q equals 7 R equals 5 and S equals 4?
If P varies directly with q, r and s then P = kqrs, where k is a constant. As 70 = k x 7 x 5 x 4 = 140k : k = 70/140 = 1/2 The equation of joint variation is P = ½qrs.
How do you find the constant and slope for direct variation equations?
For a direct variation equation the constant MUST be 0. Then the ratio of a pair of values of the two variables is the slope.
Is a plus 2a equals 3a equation or expression?
It is, in fact, an identity - which is an equation which is true for all values of the variable.
What are the values called at which the equation equals zero?
They are called the solutions or roots of the equations.
How do you know if the equation is a direct variation?
When two variables are related in such a way that the ratio of their values always remains the same, the two variables are said to be in direct variation. y=2x is direct variation y=x+2 is not direct variation
What values of x satisfy the equation x2-x equals 6?
-4
If y varies inversely as x and y equals 12 when x equals 6 what is k the variation constant?
If y and x are related inversely, then the equation for y can be said to be:y = k/xTo find the constant k, substitute 12 for y and 6 for x (a pair of values that are known to satisfy the equation).y = k/x12 = k/612 X 6 = k72 = kThe value of the variation constant k is 72.
Find an equation of variation where y varies directly as x and y 15 when x 5 find y when x is 19.?
Since ( y ) varies directly as ( x ), we can express this relationship as ( y = kx ), where ( k ) is the constant of variation. Given that ( y = 15 ) when ( x = 5 ), we can find ( k ) by substituting these values: ( 15 = k(5) ), leading to ( k = 3 ). Thus, the equation is ( y = 3x ). Now, to find ( y ) when ( x = 19 ), we substitute ( 19 ) into the equation: ( y = 3(19) = 57 ).
What is the exclude value of y equals 1-2x-1?
There are no exclude values of the equation, as given.
How many different combinations of x-values and y-values could satisfy the equation - x plus y equals 5?
10.
What is -22x equals -4xsquared plus 12?
It is a quadratic equation and the values of x are: -1/2 and 6
Which variation is very sensitive to extreme values?
Any variation is very sensitive to extreme values!
