Y=2x+4 what is parallel to the line and passing through points (1,5)

Remember that the slope intercept formula is:

y = mx + b

m is the slope

b is the y-intercept

If lines are parallel then they have the same slope (m)

This means that the slope of the line will be 2

y = 2x + b

Now we must find b

To do that you must plug in the point the line goes through in the x and y of the equation.

(1, 5)

5 = 2(1) + b

5 = 2 + b

3 = b

y = 2x + 3

Hope this helped!

~Just a girl in love with Shawn Mendes

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!

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step-by-step explanation: