Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Module 2 - Linear

Module 2 - Linear Functions

TermDefinition
In the equation, y=3x+2, what is the slope and what is the y intercept? The slope is 3, and the y intercept is 2.
Given the point (7,3) and the slope being 7, give the equation in point-slope form. Plug the points and slope into the equation: y-y1=m(x-x1) which is, y-3=7(x-7)
Find the equation of a line passing through the given points: (-4,-3) (-6,-2) find the slope, (rise/run) (-2-(-3))/(-6-(-4)) = -1/2 = slope. Then put the first set of coordinates into point-slope form. y-(-3)= -1/2(x-(-4)). Distribute and you get: y+3= -1/2x -4/2. Mult. both sides by 2. 2y+6=-1x-4, which = y=-1/2x-5
What equation form do we use to define a linear function? Slope-intercept form. y=mx+b
What would a graph of f(x)= 3 look like? A horizontal line through the 3 on the y axis
Find an equation of a line that intersects (8,-3) and parallel to 3x+4y=1 and write in standard form Set the equation equal to y. y=-3/4x +1/4. The -3/4x will be your slope as well. Plug your points into point-slope form. y-(-3)=-3/4(x-8) and distribute and multiply both sides by 4 to get 4y+12=-3x+24. Write in standard form. 3x+4y=12
Find an equation of a line that intersects (3, -7) and is perpendicular to y=1/4x -2 in slope intercept form Our slope is the negative reciprocal of 1/4x which is -4x. Then we plug the points and slope into point-slope form. y-(-7)=-4(x-3). Distribute. y+4=-4x+12. set the equation equal to y. y=-4x+5
Are these two lines parallel, perpendicular or neither? y=4x+23 y=4x-10 parallel because they have the same slope
Are these two lines parallel, perpendicular or neither? y=7x+1/2 y=-1/7x-1/2 perpendicular because the slope is the negative reciprocal
Created by: samanthatrenk
Popular Math sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards