Question

QUICK ANSWER NEEDED PLZ. I don't know how to create a table from these equations... on part B, would also like help with C:
Part A: Explain why the x-coordinates of the points where the graphs of the equations y = 4−x and y = 2x + 3 intersect are the solutions of the equation 4−x = 2x + 3.
Part B: Make tables to find the solution to 4−x = 2x + 3. Take the integer values of x between −3 and 3.
Part C: How can you solve the equation 4−x = 2x + 3 graphically?

Answer 1

@mjdennis can you help me?

Answer 2

x 4-x= 2x+3=
===============
-3 4--3 2(-3)+3
-2 ______ ________






etc.

That is what they are aiming for, in part B, except you finish the table and finish the math.
Start on that while I look at part C

Answer 3

Ok one sec I just got back.. thank you soo much though!!!

Answer 4

what does 4--3 mean???

Answer 5

Oh, you were inserting the (-3) into the equation got it.

Answer 6

Part C, take the table from part B. It is built of two sets of ordered pairs
(x,4−x) is the first and second columns. Or, we can call them (x,y) because we were given y=4−x. Can you plot (x,y) values?

Answer 7

Yep, moved too fast, sorry: 4-(-3)

Answer 8

x 4-x= 2x+3=
===============
-3 7 -3 4-(x) 2(x)+3
-2 6 -1
-1 5 1

Sorry this took so long not my strong subject...

Answer 9

is this correct??

Answer 10

Good so far, keep going. Remeber, the question says to try "integer values of x between −3 and 3"