Question

I WILL FAN AND GIVE A MEDAL!!
Can someone please help me? My teacher said that need to redo this problem and I did but I'm stuck on a step... Please help me, I really need it

Answer 1

Question~
Find the point-slope form of the equation that goes through these two points.
(1, 20) and (8, 4.5)

Answer 2

My Answer~
Y= y2-y1/x2-x1
(4.5-20)/(8-1)
=
-15.5/7
Rewrite -15.5/7 as (-15.5)/7
Rewrite -15.5 as -31/2
=
(-31/2)
(7/1)
Divide:
(-31/2) / (7/1)
=
-31/14

Answer 3

I don't know what to do after -31/14

Answer 4

y = mx + b

m = slope ( plug the slope in the equation)

use any of the points given and solve for b

Answer 5

Could you sow me how to do that? Please?

Answer 6

@TrojanPoem ?

Answer 7

y = -31/14 x + b

(1,20) << (x,y)

20 = -31/14 + b

b = 20 + 31/14

20 * 14/14 = 280/14

311/14 = b

y = -31/14 x + 311/14

Answer 8

So after the -31/14 I add what you just said?

Answer 9

@TrojanPoem

Answer 10

As the two points lie in the line, you can let x, y be them and then find b

Answer 11

@TrojanPoem Sir/ Ma'am I don't understand what you just said

Answer 12

y = mx + b , you have to find an equation like this to solve the equation.