Question

solve 2x^2=10 and find x intercepts of f(x)=2x^2-10

Answer 1

Divide each side by 2
2x^2/2 = 10/2
x^2 = 5
square root (x^2) = square root (5)
x = +/- (square root) 5

Answer 2

ok and what about the x intercepts?

Answer 3

You create a table and insert for x

X| 1 | 2 | 3 | 4 | 5 |
Y| -6| 6| etc.....

Answer 4

I don't get it

Answer 5

here it shows a graph im going to put it up maybe you can help

Answer 6

2x^2=10 ===> x^2 = 10/2 =5 ===> x= sqrt(5) or x=-sqrt(5)

Answer 7

btw sqrt(5) = 2.24

Answer 8

ok and can you give me the x intercepts?

Answer 9

what we solved are the x-intercept

Answer 10

so its (0,2.24)

Answer 11

no

Answer 12

solve 2x^2=10 and find x intercepts of f(x)=2x^2-10

Answer 13

swich the coordinates ( sqrt(5),0) =(2.24,0) , (-sqrt(5),0)=(-2.24,0)

Answer 14

oh ok

Answer 15

hope this helps.

Answer 16

Thanks