Need help, 15 through 23. (Slope and y intercept stuff. Also please add where the points would be at, 100 points...)

answer:

I am pretty sure I did my math correctly I know my slopes are correct and my y=intercepts are correct I am just not sure about my points. Hope I helped.

Step-by-step explanation:

15) points (-1,1)

16) slope= -5/2

17) y-intercept= -6

18) points (-1,-6)

19) slope= -8/3

20) y-intercept= 2

21) points (4,2)

22) slope= 5/2

23) y-intercept= 2

45

step-by-step explanation:

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3