Well, in order to first determine the slope or y-intercept, you must put change the equation to this format: y=mx+b.
m=slope and b=y-interceptI
in order to do that, you must change this equation.

x+3y=9
-x -x
----------
3y=9-x

Then, rewrite it as:

3y=-x+9
_______
3 3

simplify to

y=-x/3 +9

6 0

4 years ago

Read 2 more answers

Alina spent no more than $45 on gas for a road trip. The first gas station she used charged $3.50 per gallon and the second gas

Paraphin [41]

Answer: 3.50x + 4.00y ≤ 45

0 < y < 11.25

<u>Step-by-step explanation:</u>

$3.50x + 4.00y \leq 45\\\\\\\text{Subtract 3.50x from both sides:}\\4.00y\leq -3.50x+45\\\\\\\text{Divide everything by 4.00 (to isolate y):}\\\dfrac{4.00y}{4.00}\leq \dfrac{-3.50x}{4.00}+\dfrac{45}{4.00}\\\\\\y\leq-0.875x+11.25\\\\\\\text{Both x and y must be greater than zero, so:}\\0$

8 0

3 years ago

Read 2 more answers

In PQRS, PR and QS intersect at T. What additional information is needed to conclude that PQRS is a rectangle

lora16 [44]

If it's congruent and similar

5 0

4 years ago

Simplify 3c÷c²-d²-3d÷d²-c²​

Simplify 3c÷c²-d²-3d÷d²-c²