How do I rearrange the y=mx+b equation to find the unknown value of X on my graph?

Author Question: How do I rearrange the y=mx+b equation to find the unknown value of X on my graph? (Read 2436 times)

luvbio

Hero Member
Posts: 623

on: Oct 4, 2013

I am using the formula y=mx+b on a graph, I am trying to find the values of 3 unknown concentrations of DNA on the X axis, how do I rearrange this equation so I can find these hidden values? My straight line equation is y=0.0006x + 0.0247 any help would be great! Thanks.

Yolanda

Hero Member
Posts: 757

Reply #1 on: Oct 4, 2013

y = mx + b
y - b = mx
x = (y - b) / m
y = 0.0006x + 0.0247
y - 0.0247 = 0.0006x
x = (y - 0.0247) / 0.0006

Need homework help now?

Ask unlimited questions for free

Ask a Question

federox

Sr. Member
Posts: 308

Reply #2 on: Oct 4, 2013

(y-b)/m=x

so

(y-0.0247)/0.0006=x

sadsdas

Newbie
Posts: 10

Reply #3 on: Oct 4, 2013

subtract b
then divide by m

y=mx+b
y - b =mx
(y-b)/m = x

geoffrey

Hero Member
Posts: 880

Reply #4 on: Oct 4, 2013

x = -41.1667 + 1666.67 y

« previous next »

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

How to sketch a quadratic equation that is in standard form (Question 1)

How to find the equation of a line that is perpendicular to a line passing through a point

How to find all angles of a triangle when only the side lengths are given

What is the volume of 1.51 x 1024 atoms of an unknown gas at STP?

Cost = $99.49; Rate of markup based on cost = 32%. Find the markup and selling price.

Author Question: How do I rearrange the y=mx+b equation to find the unknown value of X on my graph? (Read 2436 times)

Related Topics

Need homework help now?