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Solving by the elimination method gives: x = 3 and y = 2
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∙ 12y ago
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Is point 1 4 on the line represented by the equation x plus 2y equals 5?
The equation "x plus 2y equals 5" is: x + 2y = 5 2y = 5 - x y = 5/2 - 1/2x y = -1/2x + 5/2
Enter the answer as an ordered pair 2y plus 2x equals 20 y - 2x equals 4?
2y + 2x = 20 y - 2x = 4 Add the two equations: 3y = 24 so that y = 8 Substitute this value of y in the second equation: 8 - 2x = 4 then 4 = 2x so that x = 2 Thus the ordered pair (y,x) = (8,2)
If x equals 8 whats the value of y in the equation y equals x2 divided by 4 minus 2?
if x = 8in the equation y=2x/(4-2) -- y=8in the equation y=2x/4-2 -- y=2it really depends on how the equation is written, because that would depend on whether you divide or subtract firsty = ( (8^2) / (4) ) - 2y = ( (64) / (4) ) -2y = 16 -2y = 14
Inverse function 2x plus 4?
y=2x+4 --> x=2y+4 ==> y=(x-4)/2
Select the system of equations that corresponds to the given graph?
Answers to pick: -2x - y = 4 2x + y = -2 -8x + 4y = -16 -4x + 2y = -8 -x - 2y = 6 -7x + 4y = 16 2x + 3y = 6 3x + 2y = 4
X - 2y equals -1 and 2x - y equals 4?
(3, 2)
What is X - 2y equals -4 and 2x - y equals 1?
x - 2y = -4 2x - y = 1 To solve this system of equations, I used matrices, and got x = 2 and y = 3.
What type of lines are these y equals 2x plus 4 and 12 equals 2y plus x?
If: 12 = 2y+x then y = -1/2x+6 So: y = 2x+4 and y = -1/2x+6 which means that they are perpendicular lines
X-2y equals -1 2x-y equals 4?
x= 3 and y = 2
3x plus 2y equals 10 2x plus 5y equals 3?
(4, -1)
Use the substitution method to solve the system of equations Enter your answer as an ordered pair 16x - 2y equals 74 2x - 2y equals 4?
16x - 2y = 74 (Eq 1) 2x - 2y = 4 (Eq 2) from Eq 2, 2y = 2x - 4 Substitute in Eq 1 16x - (2x - 4) =74 ie 16x - 2x + 4 = 74 ie 14x = 70 ie x = 5 2y = 2x - 4 = 10 - 4 = 6 y =3 Check 16 x 5 - 2 x 3 = 80 - 6 = 84 QED
What is -2x plus 2y equals 4?
-2x + 2y = 4 is equivalent to twice -2 + y = 2 which is the equation of a straight line.
How do you find y intercept for -2x plus 2y equals 4?
-2X + 2Y = 4 2Y = 2X + 4 Y = X +2 by inspection, 2 but, you could also 0 out X in original equation -2(0) + 2Y = 4 2Y = 4 Y = 2
Is point 1 4 on the line represented by the equation x plus 2y equals 5?
The equation "x plus 2y equals 5" is: x + 2y = 5 2y = 5 - x y = 5/2 - 1/2x y = -1/2x + 5/2
Is this system a depedent x-y equals 2 and -2x 2y equals -4?
It doesn't look like you have anything that can be determined. The most confusing part of this is the -2x 2y = -4
How many solutions does 2x plus y equals 5 and 2y plus x equals 4 have?
1 solution
What is the order pair for x - 2y equals -1 and 2x - y equals 4?
The ordered pair is (3, 2).
