I can help you with graphing quadratics in intercept form. Here's a step-by-step guide:
Step 1: Identify the intercepts
The intercepts are the points where the parabola crosses the x-axis and y-axis. In intercept form, the x-intercepts are given by the factors of the quadratic expression. For example, in the equation f(x) = 2(x+4)(x+6), the x-intercepts are -4 and -6. To find the y-intercept, set x = 0 and solve for y.
Step 2: Find the vertex
The vertex is the point where the parabola reaches its maximum or minimum value. The x-coordinate of the vertex is the average of the x-intercepts. In the equation f(x) = 2(x+4)(x+6), the x-intercepts are -4 and -6, so the x-coordinate of the vertex is (-4 + -6)/2 = -5. To find the y-coordinate of the vertex, substitute the x-coordinate into the equation and solve for y.
Step 3: Plot the intercepts and vertex
Mark the intercepts and vertex on the coordinate plane.
Step 4: Sketch the parabola
Draw a smooth curve that passes through the intercepts and vertex. The parabola should be symmetric about the vertical line passing through the vertex.
Example:
Let's graph the equation f(x) = 2(x+4)(x+6).
Step 1: Identify the intercepts
The x-intercepts are -4 and -6. To find the y-intercept, set x = 0 and solve for y:
f(0) = 2(0+4)(0+6) = 48
So the y-intercept is (0, 48).
Step 2: Find the vertex
The x-coordinate of the vertex is (-4 + -6)/2 = -5. To find the y-coordinate of the vertex, substitute x = -5 into the equation:
f(-5) = 2(-5+4)(-5+6) = 2
So the vertex is (-5, 2).
Step 3: Plot the intercepts and vertex
Plot the intercepts (-4, 0), (-6, 0), and (0, 48), and the vertex (-5, 2) on the coordinate plane.
Step 4: Sketch the parabola
Draw a smooth curve that passes through the intercepts and vertex. The parabola should be symmetric about the vertical line passing through the vertex.
The graph of the equation f(x) = 2(x+4)(x+6) is a parabola that opens upwards and has intercepts at (-4, 0), (-6, 0), and (0, 48). The vertex of the parabola is at (-5, 2).
Answer: 13 cookies
Step-by-step explanation: 13 divided by 2 is 6 with a remainder of 1. 13 divided by 3 is 4 with a remainder of 1. 13 divided by 4 is 3 with a remainder of 1.
Answer:
B
Step-by-step explanation:
Divide each option by 4.
13/4= 3.25
.25 x 4 =1(whole cookie)
Answer: 4
Explanation:
1) Find the divisors of 120:
1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 20, 30, 40, 60, and 120.
2) Choose combinations of even numbers for the rows and odd number for the columns:
row ------ column
8 ---------- 15 ----- ↔ 8 × 15 = 120
24 -------- 5 ------ ↔ 24 × 5 = 120
40 -------- 3 ------ ↔ 40 × 3 = 120
120 ------ 1 -------- ↔ 120 × 1 = 120
Those are the only arrangements with an even number of rows and odd number of columns: 4 in total.
The estimated number of bass in the lake is 1704 bass if the researchers caught, marked, and released 213 basses. Later, they took a sample of 104 basses and found that 13 were marked option third 1704 is correct.
It is described as a collection of data with the same entity that is linked to a problem. The sample is a subset of the population, yet it is still a part of it.
We have:
In City Lake, researchers caught, marked, and released 213 basses. Later, they took a sample of 104 basses and found that 13 were marked.
Proportion = 104/13 = 8
This means 1 marked fish in every 8 fish
The number of basses in the lake = 8×213 = 1704 bass
Thus, the estimated number of bass in the lake is 1704 bass if the researchers caught, marked, and released 213 basses. Later, they took a sample of 104 basses and found that 13 were marked option third 1704 is correct.
Learn more about the population and sample here:
#SPJ1
y>=5x-9
3x+y<=15