x^2 - 49 = 0
Add 49 to both sides:
x^2 = 49
Take the square root of both sides:
X = 7
Answer & Explanation:
1.) Which function is a linear function?
The answer is B. 
2.) If the function
is a linear function, what is the value of
?
The answer is A. 
3.) What type of function is the function representing Sully's speed?
The answer is C. It is a nonlinear function.
hope this helps :)
Answer:
$253.5
Step-by-step explanation:
Total amount saved = Amount Rhonda saved + Amount Margo saved
= $478.50 − $225
Amount Margo saved = $253.5
The slope, or gradient, of the line is 6/-3 which is -2. The gradient is -2.