WebSo lets recap, we add or subtract a variable to cancel out the other variable in elimination. If 4x-2y=14 was actually 4x+2y=14, and do what we did, it wouldn't cancel out the first equation. To get it to cancel out 2y, we multiply the equation by (-1) by both sides. -1 (4x + 2y) = (14)-1. Turns into: Weby=mx+b. In this equation, 'm' is the slope and 'b' is the y-intercept. To graph a line from a slope-intercept equation, take the value of the slope and put it over 1. For example, if the slope was 5, the slope would be 5/1. Next graph the y-intercept, take the number that is the y-intercept, and graph that number on the graph.
Solve the system by graphing -3x-y=-10. 4x-4y=8 Answers to
WebAnd we have a system of equations here. The first equation is 2y is equal to x plus 7. And the second equation here is x is equal to y minus 4. So what we want to do, when they say substitution, what we want to do is substitute one of the variables with an expression so that we have an equation and only one variable. WebQuestion 158543: Solve the system by graphing. 3x-2y=4. -6x+4y=7. Found 2 solutions by gonzo, Electrified_Levi: Answer by gonzo (654) ( Show Source ): You can put this solution on YOUR website! solving the equation by algebraic means, we get. solving for y in the first equation, we get. dairy queen flatwoods ky menu
Solve 2x-y=8} Microsoft Math Solver
WebAny line can be graphed using two points. Select two x x values, and plug them into the equation to find the corresponding y y values. Tap for more steps... x y 0 2 2 3 x y 0 2 2 3. … WebCalculus questions and answers. Solve the system by graphing. 3x + y = -2 6x + 4y = 4 Given the cost function, C (x), and the revenue function, R (x), find the number of units x that must be sold to break even. C (x) = 76x + 3450 R (x) = 99x Group of answer choices 29 units 152 units 150 units 151 units Find the solution to the system by ... WebSep 21, 2016 · (-2,-3) Create a table of values for each equation. (Try using x=0 and then y=0) {3x + 2y = -12} Let x = 0. So 2y = -12, and y = -6 --> (0, -6) Let y = 0. So 3x = -12 ... dairy queen fish sandwich meal