Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

Select the point that lies within the solution to the graph of y > –3x + 4? (–1, 7) (0, 3) (1, 3) (3, –6)

OpenStudy (anonymous):

so you're given two values in each subset, an x and y, plug in both numbers to see if the equation is true. i'll show you what i mean with the first one 7 > -3(-1) + 4, now just solve the equation

OpenStudy (anonymous):

7>3+4?

OpenStudy (anonymous):

exactly and when you add 3 and 4 together you get 7 so it's saying 7 > 7, is that true?

OpenStudy (anonymous):

nope...3>-3(0)+4=3>4... not true either

OpenStudy (anonymous):

isnt this > greater than?

OpenStudy (anonymous):

yeah! it's true :)

OpenStudy (anonymous):

sorry i looked at it wrong, i tried to delete it as soon as i posted it haha, you were right :)

OpenStudy (anonymous):

lol i was like hmmmm im not good in math but im pretty sure > means greater than

OpenStudy (anonymous):

my baaad :D

jimthompson5910 (jim_thompson5910):

Checking (-1,7) y > –3x + 4 7 > –3(-1) + 4 7 > 3 + 4 7 > 7 ... false ---------------------------- Checking (0,3) y > –3x + 4 3 > –3(0) + 4 3 > 0 + 4 3 > 4 ... false ---------------------------- Checking (1,3) y > –3x + 4 3 > –3(1) + 4 3 > -3 + 4 3 > 1 ... true ---------------------------- Checking (3,-6) y > –3x + 4 -6 > –3(3) + 4 -6 > -9 + 4 -6 > -5 ... false ---------------------------- So the answer is choice C

OpenStudy (anonymous):

thanks!

OpenStudy (anonymous):

What is the slope of the line x = –5?

jimthompson5910 (jim_thompson5910):

this is a vertical line, so the slope is undefined

OpenStudy (anonymous):

lol wow i feel slow

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!