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zubka84 [21]
3 years ago
6

Solve for y, give the slope and y intercept 5y=20, -y + 3=15x, y +1/3x=17

Mathematics
1 answer:
qaws [65]3 years ago
8 0
     5y=20                                     Equation

y=4                                            Divide by 5 on both sides

5(4)=20                                     Plug in for y

20=20                                        Simplify

y=4
slope= 0
y-intercept= 4

     ^{-}y+3=15x                           Equation

^{-}y=15x-3                              Subtract 3 from both sides

y=-15x+3                                  Divide both sides by -1 

- (^{-}15x+3) +3=15x               Plug in for y

15x-3+3=15x                            Distribute -1 into the parenthesis

15x=15x                                    Further simplified

y= -15x+3
slope= -15
y-intercept= 3

     y+ \frac{1}{3}x=17              Equation

y=^{-}\frac{1}{3}x+17               Subtract 1/3x from both sides

(^{-}\frac{1}{3}x+17 )+\frac{1}{3}x =17    plug in for y

17=17                                       Simplify

y= -1/3x+17
slope= -1/3
intercept= 17


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