Hi Francia A.
May I assume that you are doing Pre Algebra work and are familiar with substitution?
m = 1.8
b = 32
The temperature at which water freezes is 32 Fahrenheit (0 Celsius), and the temperature at which water boils is 212 Fahrenheit (100 Celsius).
Notice that at the freezing temperature of water, m can be eliminated and b can be isolated
You need to substitute the values given for F and C into the equation to solve for m and b
F=mC + b
When water freezes F = 32 and C = 0
32 = m*0 + b
32 = 0 + b
32 = b
F = mC + 32
When water boils F = 212 and C = 100; knowing b = 32 we can use this to solve for m in F = mC + 32
212 = m*100 + 32
212 = 100m + 32
212-32 = 100m
180 = 100m
180/100 = m
1.8 = m
F = 1.8C + 32
You can look up the conversion of C to F on the internet and it might be available in your math or science text.
You can choose any value for C then use the equation to convert the value to F and check the value against known conversion tables to confirm the equation. Try converting 38 C to F.
I hope you find this useful and that I made the correct assumption above.
