f(x) = 4x + 3
That's one-to-one, a linear function that will give a different f(x) for each different x.
For the inverse let's swap x and y and solve for y
x = 4y + 3
x - 3 = 4y
y = (x- 3)/4
That's the inverse,
Answer: (x- 3)/4, second choice
The domain and range of the inverse is all real numbers. It's two lines; I'll leave the graphing to you.
77/5=99/x
77x=5*99
77x=495
x=495/77
x=6.4
she needs to study 6.4 hrs to get 99
Answer:
Step-by-step explanation: Identify the angle relationships, set up the equation that will yield the unknown value, solve the equation for the unknown value, substitute the answer to determine the measurement of the angles then, check and verify your answer by measuring the angle with a protractor.
Answer:
Step-by-step explanation:
The equation is y=mx+b.
In this case, you plug in 3 for b, because b represents the y-intercept and the y-intercept is (0,3).
To figure out the slope, the equation is y-y/x-x, so it would be 8-3/1-0, which leves us with 5.
M represents the slope so your answer is:
Y=5x+3
Hope this helps!
