Select the correct answer.
Find the slope and the y-intercept of the equation 4x + 5y = -9.
1 answer:
Answer:
The answer to your question is letter C
Step-by-step explanation:
To find the slope and the y-intercept solve the equation of the line for y.
4x + 5y = -9
- Substract -4x in both sides
4x - 4x + 5y = -4x - 9
- Simplify
5y = -4x - 9
- Divide by 5 both sides
5y/5 = -4/5x - 9/5
- Simplify
y = -4/5x - 9/5
- Find the slope
m = -4/5
- Find the y-intercept
b = -9/5
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Solving for 'y'
2x - 2y + 5 = 0
Add 2y on both sides
2x + 5 = 2y
Divide by 2 on both sides
y = x + 5/2
y = x + 2.5
Solving for 'x'
2x - 2y + 5 = 0
Subtract 2x on both sides.
-2y + 5 = -2x
Divide 2x on both sides
x = y - 5/2
x = y - 2.5
