Compute the slope of the line

m∠a is 90°

m∠b is 40°

d is the answer

step-by-step explanation:

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0

answer: y = 6/4x - 2

step-by-step explanation: okay so here are the steps.

2(1+2y)=6(x-1)

2+4y=6x-6

4y=6x-8

y=6/4x-8/4

y=6/4x-2