Question

1.Tell whether the sequence is arithmetic. If it is, what is the common difference?

-19,-11,-3,5...
A.yes;5
B.yes;6
C.yes;8
D.no

2.What is the slope of that passes through the pair of points?
(-6,8),(2,3)
A.-3/8
B.-1/8
C.-7/8
D.-5/8

3.Write an equation in point-slope form for the line through the given point with the given slope.
(-3,5);m=2/3
A.y+3=2/3(x-5)
B.y+5=(2/3)(x+3)
C.y-5=2/3(x-3)
D.y-5=2/3(x+3)

4.Write y=-2/5x-3 in standard form using integers.
A.2x+5y=-15
B.2x+y=-3
C.2x+5y=-3
D.x+y=-15

5.Write the equation of a line that is perpendicular to the given line and that passes through the given point.
y-2=-1/4(x+3);(-3,5)

A.y=-3x-5
B.y=1/4x-6
C.y=4x+17
D.y=4x+5

6.How many solutions doe the system of equations have?

3x+15y=9
y=-1/5x+9/15
A.one
B.two
C.infinitely many
D.none

I think
#1.D
#2.C
#3.A
#4.B
#5.A
#6.A
(Pleas correct me if im wrong)

Answer 1

#1 C did you actually check the differences?
#2 D (3-8)/(2-(-6)) = -5/8
#3 D better review that topic
#4 B same advice
#5 C same advice
#6 C they are the same equation

Next time you want a check on your work, it would be better to show what you did.