Question

If (-4, 19) is a solution of the equation y=ax+3, then the value of a is
a)-3
b)4
c)3
d)-4​

Answer 1

Answer:

x=-4

y=19

y=ax+3

19=-4a+3

-4a=19-3

-4a=16

a=16/-4

a=-4

Answer 2

Answer:

a)-4

Step-by-step explanation:

y=ax+3

given point (x,y)=(-4,19)

19=a(-4)+3

19=-4a+3

4a=3-19

4a=-16

a=-16/4

a=-4