Ella Said:

check this math worksheet?

We Answered:

Ques 1 :- Point (-5, 5) lies in Quadrant :- 2nd not 4th
Ques 16 :- False, y = 1/3x - 3
Rest all are right....

Constance Said:

Algebra II Help - Parabola, Vertices, Etc.?

We Answered:

5.
y varies directly with x hence y=Ax

Let A be a factor of x when y=Ax

y=8 when x=4

y=Ax
8=A(4)

A=4/8
A=1/2

Hence y=(1/2)x ------- Eq 1.

Replace x=6 into Eq 1

y= (1/2)6

y=3



*****
6. 2x^2 + x - 15 = 0

Use the cross formula

1 3 | 6
2 -5 | 5

Hence

(x+3)(x-5)=0

x+3 = 0 or x-5=0
x=-3 or x=5


****
7. 2x^2 + 6x - 5 = 0

(-b+-(b^2 - 2ac)^1/2)2a

a=2
b=6
c=-5

[-6+ (6^2 - 2(2)(-5))^1/2]/ 2(2) or [-6- (6^2 - 2(2)(-5))^1/2]/ 2(2)

-6+[(36+20)^1/2]/4 or -6-[(36+20)^1/2]/4

well.. you can solve the rest of this from here right?

*******
8. y varies inversely as X Hence

y=A/x

When Y = 8, x = 12

8=A/12
A=8(12)
A=64

Hence y=64/x

When x = 24,

y=64/(24)
y=8/3


*******
11. I'm assuming it is a straight line.

Y=mX+C

m = (Y-y)/(X-x)
= (7-(-1))/(8-2)
= 8/6
= 4/3

C is when x = 0, choose point (2,7) for reference

Y=(4/3)x+C
7=(4/3)(0)+C
7=C
C=7

Hence the equation for the line is

y=(4/3)x + 7

Jeff Said:

Please help I have no idea?): Math question?

We Answered:

its a puzzle just break each sentence down and you will figure it out.........im not going to do your work for you or you'll never get it but the answer to number one is y=5x.
once you realized why then you'll figure it out...just keep working!