Math
posted by Anonymous .
Need help on these questions!
Find the slope of each line.
1. Y=x+1
Solve the equations.
2. 6+x/2=2
Simplify each expression.
3. 4(5n5)+6(17n)

y = m x + b where m is slope
so y = 1 x + 1
means slope = m = 1
multiply both sides by 2
12 + x = 4
add 12 to both sides
x = 16
first multiply out
20 n + 20 + 6  42 n
then combine like terms
22 n + 26 
1. So you know that the slope intercept form is y=mx+b, right. And m is the slope. So in this case there is no straight out coefficient, but x is also equal to 1x. Therefore one is your slope.
2. So first bring 6 to the opposite side of the equation by adding 6 to each side. You are left with x/2 = 8. Then you want to separate x, so you multiply each side by two to get rid of the denominator. This leaves x being 16.
3. So in order of PEMDAS you would multiply first. So begin by distributing the 4 to make the left side be 20n + 20. Then distribute the 6 on the other side to make it 6 32n. Since all you have to do is add, add 20n + 20 + 6 + 32n. Simplified the answer would be 12n + 26.
Hope that helps.
Serena, a 10th grade student.