Write an equation for the parabola.
A. y2 = -4x
B. x2 = -4y
C. y2 = 4x
D. x2 = 4y
Answer: C
You might also like to view...
Evaluate the integral.
A. 5i + 
j + 6(1 + 
)k
B. 5i + 
j + 6(1 - 
)k
C. 5i + 
j + 6(1 - 
)k
D. 5i + 
j + 6(1 + 
)k
Solve the problem.A couple have bought a new house and are comparing quotes from two moving companies for moving their furniture. Company A charges $80 for the truck and $50 per hour for the movers. Company B charges $60 for the truck and $55 per hour for the movers. Create a cost equation for each company where y is the total cost and x is the number of hours of labor. Write a system of equations.
A. y = 80x + 50 y = 60x + 55 B. 50y = x + 80 55y = x + 60 C. 50y = 80x 55y = 60x D. y = 50x + 80 y = 55x + 60
A cardiac monitor is used to measure the heart rate of a patient after surgery. It compiles the number of heartbeats after t minutes. When the data in the table are graphed, the slope of the tangent line represents the heart rate in beats per minute. The monitor estimates this value by calculating the slope of a secant line. Use the data to estimate the patient's heart rate after 42 minutes using the secant line between the points with t= 38 and t = 42.
a. 74
b. 80
c. 85
d. 70
e. 76
f. 75
Find the equation of the line passing through the indicated two points. Write the equation in slope-intercept form.
and 
A. y = 2x + 1
B. y = 2x - 
C. y = 4x + 10
D. y = 2x