Question

Can anyone help with 3 questions pls? i will fan and metal

Answer 1

I got a

Answer 2

A and D

Answer 3

is that right

Answer 4

hello? @HannahC234 @damirax

Answer 5

what

Answer 6

you were on my question but not saying anything

Answer 7

For the first question One way that I just made up is to try to convert the equations to slope intercept form and see if it is in normal form, if it is in y=mx+b form, then the equation is linear, if the equation cannot be converted, then it is not linear, in the y=mx+b form, the exponent above the x and y must be 1
you could also convert them to conic section equaitons and see what shape the graph is so we do

1. y-4=-8(x-1)
distribute
y-4=-8x+8
add 4 to both sides
y=-8x+12
this is in y=mx+b form so it is linear

2. y=x^4
this is not linear, it is an exponential function graph and is a curve

3. y-x^2=4.5
add x^2 to both sides
y=x^2+4.5
exponent is not =1 so this is not linear

4. 3x+5y=15
you should recognize that this is linear but anyway
subtract 3x from both sides
5y=-3x+15
divide by 5
y=-3/5x+3
linear

one way is to focus on the placeholders and their powers. if they can be both simplified to equal 1, then it is linear,

answer:
1.Yes
2.No
3 No
4. Yes
focus on the placeholders and their powers. if they can be both simplified to equal 1, then it is linear

Answer 8

oh wow thank you

Answer 9

No problem