Solve using the substitution method. Use a graphing calculator to check your answer. 8x + 8y = 75x + 5y = 10
A. (1, 1)
B. (3, 5)
C. No solution
D. Infinitely many solutions
Answer: C
Mathematics
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Answer the question.f(x) = 
Is f continuous at f(1)?
A. Yes B. No
Mathematics
Sketch the graph of the quadratic function. Give the vertex and axis of symmetry.f(x) = -x2 - 5
A. vertex (5, 0); axis x = 5
B. vertex (-5, 0); axis x = -5
C. vertex (0, -5); axis x = 0
D. vertex (0, 5); axis x = 0
Mathematics
For the graph of a circular function y = f(x), determine whether f(-x) = f(x) or f(-x) = -f(x) is true.
A. f(-x) = f(x) B. f(-x) = -f(x)
Mathematics
Round the whole number to its highest place value.414
A. 500 B. 300 C. 400 D. 410
Mathematics