2018年8月3日 · The good thing is that this equation is in slope-intercept form y = mx + b, with slope m and a y -intercept of b. By pattern matching, we see that our slope is −1, and our y -intercept is −7. We can find our x -intercept by setting y equal to zero. We get −x − 7 = 0 ⇒ −x = 7 ⇒ x = − 7 Therefore, our slope is −1, our y -intercept is −7, and our x -intercept is −7. Hope ...

With the x-intercept (-7,0) and the y-intercept (0,7), use a ruler and draw a straight line through the two points. Option 2: Plug in random x-values into the equation y = x + 7 to get the corresponding y-coordinate.

Now add the equations together. In order to add 2 equations, group like terms and combine them Notice the x coefficients add to zero and cancel out. This means we've eliminated x altogether. So after adding and canceling out the x terms we're left with: Divide both sides by to solve for y Reduce Now plug this answer into the top equation to ...

2017年6月22日 · A straight line through (0, -7) and (7, 0) x-y=7 can be rewritten as y=x-7 This is the equation of a straight line of slope = 1 and y-intecept of -7 Since the graph is a straight line only need two points to plot it.

Question 985321: x + root Y = 11, root x + y = 7 Find the value of x & y. Answer by Alan3354 (69443) (Show Source):

2015年5月4日 · Solving by elimination and substitution: x + y = 7 x − y = − 3 on adding the two equations y gets cancelled x + y = 7 x − y = −3 2x = 4 x = 4 2 = 2 substituting this value of x in equation 1: x + y = 7 2 + y = 7 y = 7 −2 y = 5 the solution for …

Algebra -> Coordinate Systems and Linear Equations -> SOLUTION: x+y=19 x-y=-7 Log On

x+y=5 3x-y=7 --------- Add the two equations to get rid of the y-terms: 4x=12 x=3 ------ substitute that into one of the original equation and solve for Y: 3+y=5 y=2 --------- Solution: x=3,y=2 ====================== Cheers, Stan H. Answer by [email protected] (507) ( …

You can put this solution on YOUR website! Step 1: Isolate for variable y x+y=11 -x. -x y=-x+11 x-y=7 -x. -x -y=-x+7 Cannot have a -1 so divide by -1 y=-x/-1+7/-1 y=x-7 Step 2: draw a x and y axis Plot the first equation at (0,11) and go down 1 right one till you have gone as far right as possible. Then from (0,11) go up 1 left 1 and go as far left as possible. Plot the second equation at (0 ...

2016年5月17日 · Equation of a line in slope intercept form is y = mx + c, where m is slope and c is intercept on x axis. Hence as y = 7 can be written as y = 0 ⋅ x + 7 Slope of line is 0 and intercept is 7.