If it is directly proportional, then:
m = kx
10 = k x -4
k = -2.5
m = 3 x -2.5
m= 7.5
Hope I helped!
<span>the answer is 3 s– 4 </span>
Answer:
k = 11
Step-by-step explanation:
f(x)=3x+k,
We know the input is -1 so replace x with -1 and the output is 8 so replace f(x) with 9
8 = 3(-1) +k
8 = -3+k
Add 3 to each side
8+3 = -3+3+k
11= k
Answer:
x = 50
Step-by-step explanation:
<em><u>The first step is to subtract 6 from both sides:</u></em>

- 6 - 6
___________
= -12.5
<u><em>The fraction </em></u>
<u><em>, is really just </em></u>
<u><em>:</em></u>
= -12.5
<em><u>Multiply both sides by -4:</u></em>
x = 50