Problem 7
Time is always an independent variable because time marches on doing its own thing without depending on external forces, or other people/things. Instead, other variables depend on time. In this case, the distance d depends on the independent variable t for time.
If the time goes up by 1 hour, then the distance variable goes up by 3 miles. In short, that tells us his speed is 3 mph.
Answer: Choice A) independent = time; dependent = distance
=================================
Problem 8
Everywhere you see an x, replace it with 9. Then use PEMDAS to simplify
f(x) = 5x - 9
f(9) = 5(9) - 9 ... x replaced with 9
f(9) = 45 - 9
f(9) = 36
Answer: 36
Answer:
$55
Step-by-step explanation:
$50 + 0.10($50) = 1.1 * 50 = $55
Answer:
y= 8/7x+ 37/7 for the equation that the line passes
Answer:
A) step one
Step-by-step explanation:
Answer:
y = 1.4x - 28/5
Step-by-step explanation:
slope intercept form: y = mx + b
m - slope
b - y-intercept
slope = rise/run
slope = 7/5
y-intercept - point at which the x-coordinate is 0
0 = 7/5 * 4 + b
0 = 28/5 + b
-28/5 = b
plug in
y = 7/5x - 28/5
simplify
y = 1.4x - 28/5
