Which of the following are the correct properties of slope?
Check all that apply.
A. Some lines have an undefined slope.
B. The slope of a line is always positive.
C. If two lines have the same slope, then they are the same line.
mm
D. A steep line has negative slope.
I
E. The slope of a line that moves up from left to right is positive

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?