0
3x+4y=-4 can be graphed on a graphing calculator or by changing the form of the equation from standard form to slope intercept form.
Rearrange the equation
4y=-3x-4
divide by 4
y=(-3/4)x-1
Now, you can simply graph the equation using the y intercept and the slope of the equation.
A good point to start with is (0,-1) you know this point is the y intercept because of the standard y intercept equation y= mx+b where b is the y intercept and m is the slope.
From the y intercept of (0,-1) you can then graph using the slope which is the change of y over change in x. So you would move up 3 and to the left 4 since the slope is negative. You can also move down three and to the right 4. Then continue, this process until you have the equation graphed. It should be a straight line.
Add your answer:
Earn +20 pts
What is the y-intercept of the graph 3x - 4y equals 20?
-5
What the answer for this 3x plus 4y?
It is: 3x+4y which is an algebraic expression
What is the answer to y equals 3x 3x plus 4y equals 30?
y = 3x 3x + 4y = 30 3x + 4(3x) = 30 3x + 12x = 30 15x = 30 x = 2 y = 3x y = 3(2) y = 6 (2, 6)
What does -x plus 4y-3x equals?
1
Simplify the algebraic expression 7x squared minus 4y plus 3x squared plus 5y plus 2 and evaluate it for x equals 3 and y equals 9?
7(3y-2)-(-4y+9)
Describes the graph of the equations 2y equals 3x plus 2 and 4y equals 6x plus 1?
The lines are parallel.
3x plus 2y equals 4 -3x plus 4y equals -10?
(2, -1)
Which is easier to graph 3x 4y equals 8 or y equals -0.75x plus 2?
They are the same equation just written differently so they are both easy to graph.
What is the y-intercept of the graph 3x - 4y equals 20?
-5
How do you graph 4y equals 8-3x?
Sensible but hard to explain
What would the graph look like for the line 3x plus 4y equals 8?
3x+4y = 8 4y = -3x+8 y = -3/4x+2 in slope intercrpt form It has a negative slope so the straight line goes 'downhill'
2x plus 3y equals 17and3x plus 4y equals 24then5x plus 7y equals?
2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41
The graph of 3x plus 4y-4 equals 0 crosses the line y equals -2 at what value of x?
3x + 4y - 4 = 0 y = -2 3x + 4(-2) - 4 = 0 3x - 8 - 4 = 0 3x = 12 x = 4 (4,-2)
How do you rewrite -3X plus 4Y equals 11?
4y = 3x+11 or as y = 3/4x+11/4
Which is easier to graph 3x plus 4y equals 8 or y equals -0.75x plus 2?
Here they are in there slope intercept forms. y = -3/4x + 2 [3x+4y=8] y = -3/4x + 2 [y=-0.75x+2] Well look at that they are the same. How do you like that. So they much be equal easy to graph.
Solve the system of equations 3x plus 4y equals 12 2x plus 4y equals 8?
x = 4 and y = 0
3x plus 2y equals 7 2x plus 4y equals 18?
(-1, 5)
