Use the vertical line test to determine whether the graph represents a function.
A. not a function
B. function
Answer: B
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Use the square root property to solve the equation. x2 = 225
A. {16, -16} B. {112.5} C. {15, -15} D. {15}
Solve the problem.Under standard conditions, molecules of a gas collide billions of times per second. If each molecule has diameter t, the average distance between collisions is given by 
where n, the volume density of the gas, is a constant. Find 
.
A. 
= - 
B. 
= - 
C. 
= 
D. 
= - 
Solve the quadratic equation by factoring.x2 - x = 20
A. -4, 5 B. -4, -5 C. 1, 20 D. 4, 5
Find the indicated root of the given quadratic equation by finding x3 from Newton's method (choose x0 to be the midpoint of the given interval).7x2 + 5x - 3 = 0 (between -2 and -1)
A. -1.1028790 B. -1.1058005 C. -1.1028847 D. -1.1034699