Question

Can Some one please check my answers ?

Answer 1

1.)order the group of quadratic fractions from widest to narrowest graph.
y=3x^2;y=5x^2;y=7x^2
a.)y=3x^2;y=5x^2;y=7x^2
b.)y=7x^2;y=5x^2;y=3x^2
c.)y=3x^2;y=7x^2;y=5x^2***
d.)y=2x^2;y=7x^2;y=3x^2

2.)the area of a play ground is 234yd^2. the width of the playground is 5 yard longer than its length, find the length and the width of the playground.
a.)L=18 yards;W=13 yards
b.)L=13 yards;W=18 yards**
c.)L=18 yards;W=26 yards
d.)L=26 yards;W=18 yards

3.)what is the value of c so that x^2+8x+c is a perfect square trinomial?
a.)16
b.)34
c.)4***
d.)64

4.)what is the value of c so that x^2+17x+c is a perfect square trinomial?
a.)17/2
b.)289
c.)289/4
d.)289/2

Answer 2

Pssst, Roast Battle Live in English Chat, be there or be square!

Answer 3

wrong,right,wrong

Answer 4

explain

Answer 5

and for number 4 i got a

Answer 6

Two is right because the width would be 5 more than the length and 13*18=234

Answer 7

yes i know. what about the other three im having trouble with them

Answer 8

I'm afraid your answer for the 4th one is also wrong

Answer 9

im stuck between d or a for the last one so idk

Answer 10

I'll help you out, give me a sec ^_^

Answer 11

alright

Answer 12

for the first one is it b ?

Answer 13

Play around with the slider on the left and see if you can then understand how to do question a from it:
https://www.desmos.com/calculator/seoestnwvc

Answer 14

why do you think it's b?

Answer 15

idk ;-;

Answer 16

and that link has nothing to do with my questions..

Answer 17

It does!

Answer 18

So you see that when you move the slider, it changes the value of a? Well, a is the number multiplied by x^2. For example, if a=4, then the graph which is drawn is 4x^2. If a=7, then the graph which is drawn is 7x^2.

Answer 19

so yet its b like i said

Answer 20

Are you sure that 7x^2 is the widest graph?