A function is seen when you know that for every x value there is one y value. An x value cannot be repeated.
In A, the x coordinates are 3, 4, -3, and 2. They are all different.
In B, they are 2, -1, 5, and 4. Again, they are all different.
Both A and B represent functions.
Answer:
(x,y) = (-2,7)
Step-by-step explanation:
7x+2y=0
9x+4y=10
y = -9x/4 + 5/2
7x+2 (-9x/4 + 5/2) = 0
5x/2 = -5
5x = -10
x = -2
use x and substitute to get y
y = -(9/4) (-2) +5/2 = 7
Answer: B.) 62
sum of interior angles of quadrilateral = 360
lines DB and DA are tangent to the circle, so they're at a right angle to the lines OB and OA respectively. so to find mBOA = 360 - 56 - 90 - 90
so mBOA = 124
mBCA = (1/2)mBOA
mBCA = (1/2)(124)
mBCA = 62°
In this problem, it is given that the greater number is represented by x. With this, the smaller number which is 9 less than the greater number may be represented by x - 9. The product of the two numbers is 713 and may be expressed as
(x)(x -9) = 713
The equation above is the answer to the problem.
Answer:
The cost he will pay for 10 rides will be $70 and for r rides will be .
Step-by-step explanation:
The price of admission into the park is $20.The price for each ride is $5David takes 10 rides,So, the cost he will pay if he took 10 rides will be,If he had r rides,So, the cost he will pay if he took r rides will be,Therefore, the cost he will pay for 10 rides will be $70 and for r rides will be.
!!! hope this helps !!!!
