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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Using complements (with respect to 1) of the single discounts, find the net cost equivalent for the following discount.25/25/25/5
A. 0.4 B. 0.6 C. 0.40078125 D. 0.59921875
Solve. Write a mixed numeral for the answer.A test of five light bulbs showed that they burned for the following lengths of time (in days): 17
, 19
, 
21, and 18
. For how many days, on average did the light bulbs burns?
A. 19
days
B. 19
days
C. 19
days
D. 19
days
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 2.8x + 0.15 B. y = 3x + 0.15 C. y = 3x D. y = 2.8x
Use long division to find the quotient and check.4028 ÷ 8
A. 503 B. 507 C. 503 R4 D. 503 R7