2017年1月15日 · Please see below. There are two ways of doing it. One -> The intercept form of the equation is x/a+y/b=1, where a and b are the intercepts formed by the line on x-axis and y-axis. As the equation is x+y=8, dividing each term by 8, we get x/8+y/8=1 and hence, intercepts formed by the line on x-axis is 8 and on y-axis too it is 8. Hence mark the intercepts 8 on each axis and join them to draw ...

2018年5月4日 · #y=-x+8#-----> by subtracting #x# both sides. #y-x=8# #y=x+8#----> by adding #x# both sides. Now we have: #y=-x+8# (red line graph) #y=x+8# (blue line graph) Create a graph to locate the intersection of the equations. The intersection of the system of equations is the solution. by plotting the graph, see the attached, we get intersection at #(0 ...

2018年5月7日 · The solution is x=6, y=2: See explanation below. To solve such a system you should regard each equation as a function of x and y, where x_1+y_1=8, or y_1=-x_1+8 To be able to plot the graph you will note that x=0 gives y=8, and y=0 gives x=8, so the two points (0, 8) and (8, 0) are on the line. x_2-y_2=4, or y_2=x_2-4 x=0 gives y=-4, and y=0 gives x= 4, so this line must go through the points ...

x+y=8 x-y=6 ** rewrite equations into standard form for straight lines: y=mx+b, m=slope, b=y-intercept x+y=8 x-y=6.. y=-x+8 y=x-6 equate two equations-x+8=x-6 2x=14 x=7 y=x-6=7-6=1 point of intersection:(7,1).. Graph the two lines above using the slope and y-intercepts or plot points and check if they cross at the point of intersection.

(x+y)^8 Here we have to expand the 8th power. Ninth raw in Pascal's triangle gives the coefficient of the terms in the resulting expansion. that means, the coeffients are, 1 8 28 56 70 56 28 8 1 Now write the variable part like this, x^8 x^7 * y x^6 * y^2 x^5 * …

2016年4月6日 · Which method do you use to solve the system of equations #y=1/4x-14# and #y=19/8x+7#? What are the 2 numbers if the sum is 70 and they differ by 11? How do you solve #x+y=5# and #3x+y=15# using the substitution method?

x+y=8 x-y=2: solve by elimination. These are set up with no manipulation of equations. Just add the two equations together. the y terms are eliminated because +y-y=0. We are left with x+x=2+8: 2x=10:: take x's found value and plug it back into either equation. I will use eq 2: 5-y=2:-y=-3

Divide both sides by to isolate y. Break up the fraction. Reduce. So the equation is now in slope intercept form where the slope is and the y-intercept is note: the y-intercept is the point If you need more help, email me at [email protected] Also, feel free to check out my tutoring website Jim

2016年9月25日 · y=-x+8 is the slope-intercept form, which is y=mx+b. The number in front of x is the slope and b is the y-intercept. The y-intercept for this equation is 8, or (0,8) You put a point at (0,8). That's the starting point for your slope. The number in front of x is -1 That means the line rises -1 (goes down by one unit) and runs 1 (moves to the right by one unit)

x + y = 8 x - y = 10 Algebra -> Matrices-and-determiminant -> SOLUTION: Given the system of equations, what is the value of the system determinant? Algebra: Matrices, determinant, Cramer rule Section