Answer:
Plot and connect (5,4), (3,0) and (7,0).
Step-by-step explanation:
This is in factored form and can be graphed directly from the equation. The equation shows the x-intercepts.
The x-intercepts are found by solving for x using the zero product rule.
(x-3)=0 so x = 3
(x-7) = 0 so x = 7
The intercepts are (3,0) and (7,0). Plot the points. The vertex will occur halfway between these points. 7-3 / 2 = 4/2 = 2. This means the axis of symmetry is at x = 5 and this is the x-coordinate of the vertex too.
Substitute x = 5 into the equation and solve for y.
-(5-3)(5-7) = -(2)(-2) = 4
The vertex is (5,4). Plot it and connect the points.
Answer:
D
Step-by-step explanation:
so from the graph we see that at zero weeks (the start), he has 15 rocks.
each week he adds 5 rocks. (he is at 30 rocks after 3 weeks)
This narrows the choices down and D is our answer
Answer:
12
Step-by-step explanation:
To find the common difference, we take the 2nd term and subtract the first term
17-5 =12
We check it with the 3rd term minus the second term
29-17 = 12
The common difference is 12
We add 12 each time
First solve the triangle:
75° + 75° + x = 180°
150° + x = 180°
x = 180° - 150°
Therefore x = 30°
Then, use the geometrical property of vertically opposite angles.
Therefore. x° = 30°
Answer:
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Step-by-step explanation:
