Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

Which of the following best describes the technique used to graph the equation, y = -2x + 8, using slope and y-intercept? Mark a point at 8 on the y-axis, move upward 2 and right 1, mark the point and draw the line. Mark a point at 8 on the y-axis, move downward 2 and right 1, mark the point and draw the line. Mark a point at -2 on the y-axis, move downward 8 and right 1, mark the point and draw the line. Mark a point at -2 on the y-axis, move upward 8 and right 1, mark the point and draw the line.

OpenStudy (dtan5457):

Isn't this the same question? :O

OpenStudy (dtan5457):

Do you need me to explain it again?

OpenStudy (anonymous):

yesss:)

OpenStudy (dtan5457):

y = -2x + 8 -2 is your slope. 8 is your intercept.

OpenStudy (dtan5457):

OpenStudy (dtan5457):

Can you tell what the answer is from that graph?

OpenStudy (dtan5457):

What 2 answers are you immediately going to cross out? Knowing that 8 is the y intercept?

OpenStudy (anonymous):

c and d

OpenStudy (anonymous):

@dtan5457

OpenStudy (dtan5457):

Good. Now, since this is a negative slope, do you move upwards or downwards?

OpenStudy (anonymous):

upwards?

OpenStudy (dtan5457):

Upwards-positive slope

OpenStudy (anonymous):

so its A. Mark a point at 8 on the y-axis, move upward 2 and right 1, mark the point and draw the line.

OpenStudy (anonymous):

@dtan5457

OpenStudy (dtan5457):

It would be A if it was a positive slope or y=2x+8 However it is a negative slope, it goes DOWNWARDS.

OpenStudy (anonymous):

so B @dtan5457 cuz it go down

OpenStudy (dtan5457):

yes

OpenStudy (anonymous):

thank you

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!