Tutor profile: Michelle G.
Subject: Linear Algebra
Write an equation of the line with slope -2 and y-intercept (0,-5)
1. Follow the format y-y1=m(x-x1) 2. Filling in the values; we get: y--5=-2(x-0) 3. Simplify it to y+5=-2x 4. Moving the 5 to the other side by subtracting on each side we get y=-2x-5
Subject: Basic Math
Write 210,000,000,000 in scientific notation
1. Count the number of digits up until the 2; scientific notation is written with a number less than ten multiplied by 10 to the power of the number of digits up to the first digit 2. There are 11 digits (aside from the 2) 3. So we will write this as 2.1 * 10^11 ( we write the .1 since the second digit is a 1 and not a 0)
Solve the equation 5x+20=25
1. 5x=25-20 2. 5x=5 3. 5x/5=5/5 4. x=1
needs and Michelle will reply soon.