Help! Tell me why to write to show work.

1.   19.

2.   -7.

Step-by-step explanation:

1.  Put x = 2 then simplify:

 f(x) = 2(3^x) + 1

 f(2) = 2(3^2) + 1

= 2*9 + 1

= 18 + 1

= 19.

2.   f(-3) = 4(-3) + 5

= -12 + 5

= -7.

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?