Answer:
a) the lines coincide, c) the slopes are equal, d) the y-intercept are equal, e) the system has an infinite number of solutions.
Step-by-step explanation:
Each equation is a multiple of the other one. Thus, the system of equation has an infinite of solutions, reports same slopes and y-intercepts and coinciding lines.
That is known when there is no like terms to be added, and for the case of a fractional function: there is no more common factors between the numerator and the denominator.
Hope that help
Answer:4 hours an 40 minutes
Step-by-step explanation: i started out adding the hours together so the class started at 6:45 the 7:45 then 8:45 then 9:45 then i had to stop there an add 15 minutes to get to 10:00 then i adding another 25 minutes to get to 10:45
Answer:
y = 
x² - 7
Step-by-step explanation:
The equation of a parabola in vertex form is
y = a(x - h)² + k
where (h, k) are the coordinates of the vertex and a is a multiplier
Here (h, k) = (0, - 7), thus
y = a(x - 0)² - 7
To find a substitute (4, - 3) into the equation
- 3 = a(4 - 0)² - 7, that is
- 3 = 16a - 7 ( add 7 to both sides )
4 = 16a ( divide both sides by 16 )
a = , thus
y = x² - 7
