Answer:
Step-by-step explanation:
1. x/10=12/15
x*15=10*12
x=10*12/15
x=2*5*3*4/5*3=8
x=8
2. x/9=8/6
x*6=9*8
x=9*8/6
x=3*3*8/3*2=24/2
x=12
Answer:
the first one,the third one and the last.
Answer:
f(x) = -5x - 1.
Step-by-step explanation:
The y values are decreasing by 5 as the x values increase by 1, so it looks like a linear function.
The slope = (4-9) / (-1 - (-2)) = -5 so we write:
y = -5x + c where c is the y-intercept.
When x = 0, c = -1 so the function is
f(x) = -5x - 1.