Graph the equation. Identify the coordinates of the vertex.y = x2 + 4x - 7
A. 
B. (4, 0)
C. (-2, 3)
D. (-2, -11)
Answer: D
Mathematics
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The relationship between the Fahrenheit and Celsius temperature scales is given by the linear function.
What is the F-intercept and what does it represent?
a. 9/5, Fahrenheit temperature corresponding to 0°C
b. 9/5, Celsius temperature corresponding to 32°C
c. 32, Celsius temperature corresponding to 0°F
d. 0, Fahrenheit temperature corresponding to 32°C
e. 32, Fahrenheit temperature corresponding to 0°C
Mathematics
Determine whether the positive or negative sign makes the equation correct. Do not use a calculator.cos 108.5° = ±
A. Positive B. Negative
Mathematics
Perform the addition visually using symbols.5 + (-3)
A. 2 B. -8 C. -2 D. 8
Mathematics
Determine the phase shift of the function.y = 
sin (2x + ?)
A. 
B. 
C. -?
D. - 
Mathematics