1C. Questions that require solutions 2C. Questions that require solutions8) If function y=(k-2)x^(k^2-5k+5) represents an inverse proportional function y in terms ofx, then(1) find the value of k;(2) which quadrants is the graph of the function in? Does y increase or decrease ...
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1C.Questions that require solutions12 It is given that variables y and x are directly proportional,and when x =4,then y =2.(1)Write an analytical expression of y as a function of x.(2)Find the value of y when x=5.(3)Find the value of x when y=10.(4)Draw the graph of the...
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C.Questions that require solutionsy is directly proportional to x-1 and when x=4,y =-12.(1)Write an expression of the functional relationship between y and x.(2)When x=-2,find the value of the function y.(3)When y =20,find the value of the independent variable x.C.Questions ...
【题目】C. Questions that require solutionsy is directly proportional to x-1 and when x = 4, y =-12.(1) Write an expression of the functional relationship between y and r.(2)When x--2, find the value of the function y.(3) When y= 20, find the value of the independent ...
C.Questions that require solutionsSolve the equations (by using the quadratic formula):(1)x2-3x-4=0;(2)x2=2(x-1);(3)x2-43x+10=0;(4)-x2-x+1=0;2(5)5x2-2x-7=0;(6)2(x-1)=2x2;(7)x2+23x+3=0;(8)(2x一7)2-(2x+5)2=12x2;(9)2x2+27x+1=0;(10)(x+1)(x...
C. Questions that require solutionsThere is a two-digit number with the sum of the digit in its tens place and the digit in its onesplace being 5. If the digitin the tens place and the digit in the ones place are swapped, theproduct of the new two-digit number and the original two...
(1)After completing thesquare, the original equation becomes(x-1)2=6, and the solutions are x=1+√6.(2) Aftercompleting the square, the original equationbecomes(x-2)2=10 000, so x_1=102 ,x2=98. (3) After completing the square, theogn qutonbecoes (x-3/(10))^2=1/4 othes...
C.Questions that require solutions ⑩ Solve the equations(by completing the square) (1)x2-2x-5=0; (2)x2-4x=9996; (3)x2-0.6x-0.16=0; (4)2x2+4x-7=0; x^2+ 1/6x- 1/3=0 ω 2/3y^2+ 1/3y-2=0 1/4x^2- 1/2x-1=0 (8)3x2-2=4x; (9) x^2- √3x-6=0 (10 )...