Answer:
b. y = 1000x
Constant of proportionality = 1,000
Step-by-step explanation:
The equation that represents a proportional relationship between variable x and y usually takes the following form, y = kx.
Where,
k = constant of proportionality.
From the three given equations, the only equation that takes the form is b. y = 1000x.
The constant of proportionality (k) of the equation = 1,000.
Answer:
2(8)+3
16+3=19
Step-by-step explanation:
Answer:
<em>21(a) 8 cm</em>
<em>21(b) 1.6 cm/sec</em>
Step-by-step explanation:
21(a)
21 cm = 13 cm = 8 cm
21(b)
Increase in depth from 6 sec to 11 sec: 8 cm
Time from 6 sec to 11 sec: 11 sec - 6 sec = 5 sec
Rate = (8 cm)/(5 sec) = 1.6 cm/sec
Answer:
f(-2) = 1
Step-by-step explanation:
f(x) = x^2 + 2x + 1
To find the value f(-2), replace x with -2 and evaluate the expression.
f(-2) = (-2)^2 + 2(-2) + 1
f(-2) = 4 - 4 + 1
f(-2) = 1
