Finding Slope of Lines Parallel to 9x + 4y = 7
What is the slope of any line parallel to the line 9x + 4y = 7 ?
7 Answers By Expert Tutors
Inactive Tutor answered 09/26/25
What is the slope of any line parallel to the line 9x + 4y = 7 ?
Step #1: Solve for y, and write the equation in slope-intercept form.
9x + 4y = 7
-9x -9x Subtract 9x from both sides to isolate y
4y = -9x + 7
4 4 4 Divide everything by 4.
y= -9x/4 + 7/4
So any line with a slope of -9/4 and a different y-intercept will be parallel to y = -9x/4 + 7/4
Inactive Tutor answered 08/11/25
Lines that are parallel have the same slope or steepness so find the slope of the original line and you will know the slope of the new line. If you write your line in slope intercept form which is y=mx+b, the m is your slope. Rearrange your original equation by solving for y. USE inverse operations when going to the other side of an equal sign. Isolate your y by not moving it. Subtract 9x from both sides of the equation 1st.
9x + 4y=7
-9x -9x subtract 9x from both sides
4y=-9x+7 rewrite equation and now divide everything by 4 to isolate your y
4 4 4
y=-9/4x + 7/4 your m (slope) is -9/4 so your new line's slope is -9/4 as well. ANSWER: -9/4
Hello, thank you for taking the time to post your question!
If the lines are parallel the slope will be the same as the original equation, so you want to find the slope of 9x + 4y = 7.
To do that I would put it into slope-intercept form y = mx + b and then find what the value of “m” is
9x + 4y = 7
4y = -9x + 7
y = -9/4x + 7/4
so the slope of the parallel line would be m = -9/4
Hopefully that gets you moving in the right direction! Feel free to reach out for a lesson if you have any questions beyond that! :)
Huaizhong R. answered 06/04/25
Math Learning Expert known for making math accessible to anyone
Turning the equation 9x+4y=7 into the slope-intercept form:
- subtract 9x on both sides: 4y=-9x+7
- divide by 4 on both sides: y=-9/4x+7/4.
- compare with the slope-intercept for y=mx+b, we see that the slope is m=−9/4.
Doris H. answered 03/30/25
Experience Math Specialist: Helping Students to Improve Math Scores
ACT Math Question: What is the slope of any line parallel to the line 9x + 4y = 7 ?
Information require to solve the mathematical equation: 9x + 4y =7
Use the slope intercept form of a linear equation: y = mx +b
- m is the slope and b is the y intercept
Step 1:
Convert the equation to slope intercept form
Original equation: 9x + 4y =7
Subtract 9x from both sides of the equation
4y = -9x + 7
Divide both sides by 4
y=-9/4 x + 7/4
Step 2:
Identify the slope
The slope m is the coefficient of x in the slope intercept form.
m = - 9/4
Step3:
State the slope of any parallel line.
The slope of any line parallel to 9x + 4y =7
Slope = -9/4.
Final Answer
What is the slope of any line parallel to the line 9x + 4y = 7 ? Slope = -9/4
I hope this information is useful. Please let me know if you require any more assistance. If anyone in my neighborhood is interested in setting up an in-person math tutoring session. I look forward to hearing from them. Have an amazing day. Doris H.
Mike M. answered 03/29/25
Math Tutor specializing in Algebra, Pre-Calculus, Trig, and Calculus
One of the most fundamental equations in math is the slope intercept form equation. This is an equation that all students should have in their memory bank.
y = mx + b
m = slope of equation
b = y intercept
Now take original equation and put it into slope, intercept form as described above
9x + 4y = 7
4y = -9x + 7
y = (-9/4)x + 7/4
m = -9/4 which is slope
Inactive Tutor answered 03/28/25
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Inactive Tutor
1. Rewrite the equation into Point-Slope Format 9x + 4y = 7 4y = 7 - 9x ...divide both sides by 4 y = -9x/4 + 7/4 m = -9/4 Any line with a slope equivalent to -9/4 & with a different y-intercept (aka b-value) will be parallel to the line 9x + 4y = 720d