I cannot seem to get this right. Find an equation of the line that has a slope of -4 and a y intercept of 9. y=

y=-4x+9

Step-by-step explanation:

-4 is the slope and the y intercept is 9

i use my brain for prombles like this maybe you could try it

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.