x-y=4 This question is from textbook Answer by Alwayscheerful(414) (Show Source ... y-intercept is -4

Algebra: Linear Equations, Graphs, Slope Section. Solvers Solvers. Lessons Lessons

SOLUTION: What is the value of y in the formula shown when x = 4/5 ? y=4/x + sqrt (x + 0.2) - 5x ...

You can put this solution on YOUR website! Y=4X+4 setx=0 & solve for y y=4*0+4 y=4 (0,4) now set y=0 & solve for x 0=4x+4

Question 800452: find the equation of the circle with center on x+y=4 and 5x+2y+1=0, and whose radius is 3 Answer by lwsshak3(11628) ( Show Source ): You can put this solution on YOUR website!

first you would take the top equation and set it equal to x so y=-x+4 subtract 4 from both sides y-4=-x divide by -1-y+4=x then plug that into the second equation where x would be so y=2(y-4)+6 then multiply y=2y-8+6 do the -8+6 which makes -2 so y=2y-2 subtract 2y from both sides-y=-2 multiply by -1 y=2 then plug in the y=2 to the first ...

x+y = 4 xy = 2 We'll call the equations shown above to be equation (1) and equation (2) (in that order) ----- Multiply both sides of equation (2) by 2 xy = 2 2*xy = 2*2 2xy = 4 We'll refer to this as equation (3). ----- Square both sides of equation (1) x+y = 4 (x+y)^2 = 4^2 x^2+2xy+y^2 = 16 x^2+4+y^2 = 16 ....note how the "2xy" term has been ...

Take the value of x that you selected for step 1 and the value of y that you calculated in step 2 and form an ordered pair (x,y). Step 4. Plot the ordered pair from Step 3 on your graph. Remember that the x value is the distance right or left along the horizontal axis and the y value is the distance up or down along the vertical axis. Step 5 ...

y = 4 x = 4 y = 7 x = 7 Algebra -> Graphs -> SOLUTION: Write the equation of the line that has an undefined slope and passes through the point (4, 7). Algebra: Graphs, graphing equations and inequalities Section

You can put this solution on YOUR website! Let's label the equations: Equation A: x+y=4 Equation B: x+z=4 Equation C: y+z=4