SOLUTION: Find the intercepts and then use them to graph the equation
4x+5y=20
I have to see the graph I keep coming up with wrong answers can you please help me anyone?
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Question 243565: Find the intercepts and then use them to graph the equation
4x+5y=20
I have to see the graph I keep coming up with wrong answers can you please help me anyone?
Found 2 solutions by jim_thompson5910, oberobic:
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
x-intercept
To find the x-intercept, plug in and solve for x
Start with the given equation.
Plug in .
Multiply and 0 to get 0.
Simplify.
Divide both sides by to isolate .
Reduce.
So the x-intercept is )
.
------------------------------------------
y-intercept
To find the y-intercept, plug in and solve for y
Start with the given equation.
Plug in .
Multiply and 0 to get 0.
Simplify.
Divide both sides by to isolate .
Reduce.
So the y-intercept is )
.
Now plot the x and y intercepts. In other words, plot the points and
Now draw a straight line through those points to graph :
Graph of through the points and .
Answer by oberobic(2304) (Show Source): You can put this solution on YOUR website!
First, get the formula in y = mx + b format.
.
4x + 5y = 20
Subtract 4x from both sides
5y = 20 - 4x = -4x + 20
Divide both sides by 5
.
when x=0, y = 4
when y=0, x = 5
.
Graph:
.
Done
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