Provide an appropriate response.Does every straight line have an x-intercept? If not, give an example of an equation whose graph does not have an x-intercept.
What will be an ideal response?
The x-intercept is the point where the line crosses the x-axis. Lines parallel to the x-axis do not intercept the x-axis. Thus the graph of any equation of the form 
where 
has no x-intercept.
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Replace the Cartesian equation with an equivalent polar equation.x = 6
A. r = 6 sec ? B. r = 6 cos ? C. r = 6 csc ? D. r = 6 sin ?
Solve the problem.Students at Maple School earned $760 selling candles. They want to accumulate $2000 for a club trip. What percent of their goal has been reached?
A. 3% B. 38% C. 0.38% D. 30%
Provide an appropriate response.Factor the special product: 9x2 + 12x + 4
A. 3(3x2 - 4x + 4) B. (3x + 2)(3x - 2) C. (3x + 2)2 D. (3x - 2)2
Find the absolute value of the complex number.z = 2i
A. 2 B. -2 C. 0 D. 4