Find three integer or decimal solutions to the following equation, and then graph the solution set. 5x-4y=20

we got three points for the given equation (0, -4) ,(2.5 , -1.875) and (5 , 1.25).

Step-by-step explanation:

We have given,

An equation: 5x - 4y = 20

To draw solutions of equation in a graph we can rewrite given equation as:

5x - 4y = 20

or 5x - 20 = 4y

or y =

Now plug three values for x and get corresponding y value.

x :     0          2.5          5

y:     -4        -1.875        1.25      

Hence we got three points for the given equation (0, -4) ,(2.5 , -1.875) and (5 , 1.25).

Please find the graph attached below.

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

step-by-step explanation: