Question

For the function y= -2x + 1, find the x-value that make y=3.
HELP!! MEDAL & FAN

Answer 1

okay so first put into the equation that y=3

Answer 2

?? i Dont understand like
Y= -2x(3) +1 ??

Answer 3

so if y=3 and y=-2x+1
what can you say -2x+1 also equals?

Answer 4

y=3 means that wherever you see a y in the equation, you can replace it with a 3

Answer 5

-1

Answer 6

y=-2x+1
3=-2x+1
2=-2x
2x=-2
x=-1
so yes x=-1

Answer 7

thats my answer?

Answer 8

yes

Answer 9

Thanks so much (:

Answer 10

no probs!