## Durply one year ago HELP PLZ MEDAL AND FAN!!!

1. Durply

2. anonymous

What do you think the answers are?

3. Durply

1b 2b 3a 4a

4. Durply

if i fail this its over for me

5. anonymous

I am pretty sure it is 1A 2B 3B 4B bit you will want to check your work again

6. anonymous

I know 1 is A and 2 is B for sure

7. Durply

how is 1 a

8. Durply

@mathmate

9. Durply

plz help

10. Durply

can you walk me through this plz

11. mathmate

rate of change = slope = $$\large \frac{y_2-y_1}{x_2-x_1}$$ For each function, pick two points P1(x1,y1) and P2(x2,y2) and calculate the rate of change. That applies to #3 and #4. For one and two, you only have to transform the equations into the slope intercept form y=mx+b If m>0, then rate of change is positive, If m<0, then rate of change is negative. For example, Line is 2x-3y=-6 transform to 2x+6=3y or y=(2/3)x +2 so m=2/3 >0, and so rate of change is positive. You can do the same for both #1 and 2. If you wish, post your results for checking, together with work.

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