The general equation of a straight line graph is y = mx + c, where m is the slope and c the intercept on the y axis.
So the slope is 2, and the y intercept is -3.
To plot, calculate y when x = -3:
y = 2x - 3
y = 2*(-3) - 3
y = -6 - 3
y = -9, so plot the point (-3, -9)
Now find y when x = 3:
y = 2*3 - 3
y = 6 - 3,
y = 3, so plot the point (3,3)
Join the two points you have plotted, and there is your graph.
Any point on this graph is a solution to your equation.
(2x)ysquared
You cannot solve one equation in two unknowns.
this can not be solved un less with another equation
Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4
Set up the equation and solve: 8x + 8 = 2x +38 (subtract 2x and 8 from both sides of the equation) 6x = 30 (divide both sides of the equation by 6) x = 5
(2x)ysquared
You cannot solve one equation in two unknowns.
this can not be solved un less with another equation
Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4
Set up the equation and solve: 8x + 8 = 2x +38 (subtract 2x and 8 from both sides of the equation) 6x = 30 (divide both sides of the equation by 6) x = 5
3x-2 = 2x+3 3x-2x = 3+2 x = 5
A single linear equation in two variables cannot be solved.
To solve for x, set up the equation: 2x +2x = 40 (then simplify) 4x = 40 (then divide both sides of the equation by 4) x = 10 (this is the answer)
2x + 5 - 5 = 2x. You can not solve for x because this is not an equation.
Are you sure the directions don't have "solve the equation as x=___ and y=___"
-9-2x+x = -13 -2x+x = -13+9 -x = -4 x = 4
Better formatting is cos(2x+20)=-0.5