Answer:
how is this a math question? ;-;
Answer:
f(x) = 5x - 30
Yes it is a function
Step-by-step explanation:
Because when you input 0 you get -30 we know it starts at 0 or (0,-30). This gives us b in the equation y = mx + b.
We know that for every 4 cars washed it increases by 20. So 20/4 is 5. This tells us m = 5.
Plug it all in and you get y = 5x - 30 or f(x) = 5x - 30
Ok name the expressions we both know 3z is one 5x is one 6xy is one do you think 3x^2y^4z is an expression i would give you the answer but i also want you to understand the problem and what your looking for to in the equation
The answer is C. The y intercept because a constant simply means a number without a variable accompanying it. The y intercept its the only number without a coefficient.
Slope = (-8 - 7)/(4 - 9)
= -15/-5
= 3
equation:
y - 7 = 3(x - 9) ............<..................using ordered pair <span>point (9, 7)</span>