Thursday

January 29, 2015

January 29, 2015

Posted by **TTR+S<3** on Thursday, May 8, 2014 at 5:19pm.

x = -1, 0, 1, 2

y = -2, 1, 4, 7

A.y = 1/3x + 1

B.y = 3x + 1

C.y = 1/3x

D.y = 1/2x + 1

4. What is the function rule for the following situation? rex paid $20 for a membership to the pool and pays $3.00 each time he goes to the pool.

A. Y=20x+3

B. 20=3x+y

C. Y=x+20

D. None of these.***

5. Find the solution to the system of equations by using either graphing or substitution. Y=6-x and y=x-2

A. (2,4)

B. (-4,2)

C. (4,2)***

D. No solutions

6. y = 2x – 1 and y = x + 3 (1 point)

A.(4, 7)

B.(7, 4)

C.(–7, –4)

D.infinite solutions

7. Y=4x and Y+x=5

A. (-4,1)

B. (1,4)***

C. (-3,2)

D. (2,3)

8. What will the graph look like for a system of equations that has no solution

A. The lines will be perendicular

B. The lines will cross at one ppint

C. Both equations will from the same line

D. The lines will be parallel.***

pls help with #3 and #6!??

thanks

- Ms. Sue? Steve? Damon? Writeacher? Anyone!?? -
**TTR+S<3**, Thursday, May 8, 2014 at 5:43pmsry.....

- MATH PLS HELP CHECK ANSWERS -
**Leo**, Thursday, May 8, 2014 at 5:48pmFor number 3 and 6, you can simply test solutions by substituting each of the x and y coordinates for x and y in the equation.

- MATH PLS HELP CHECK ANSWERS -
**Steve**, Thursday, May 8, 2014 at 6:00pm#3 since y increases by 3 when x increases by 1, the slope is 3/1 = 3.

Only one choice has a slope of 3.

And, as Leo said, you can just plug in the x's and see whether the y's match!

#4 ok

#5 ok

#6 looks like A to me. Did you even try the given points?

#7 ok

#8 ok

You did ok, for the ones where you provided an answer.

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