It's
In the following equation, what is the y-intercept:
y=2(3)x
(0,2)
what is the m and b stand for in the following equation: y=mx+b
m: slope
b: y-intercept
When looking at a graph, how do I know if it is a quadratic function?
It's a parabola (u shape)
What does EOC stand for?
End of Course
how do I put a table into Desmos?
Go to the "+" and then click table
If the graph of the equation: y=1/2x2-2x+4 was shifted to the right 3 and down 7, what would the new vertex be?
(5,-5)
Comparing the equations y=x2 and y=2x2+3, what are the differences between the first to the second?
Vertical stretch by 2 and vertical shift up 3
Correctly simplify the following:
(3x4)2
9x8
What is the linear equation I put into Desmos?
y1~mx1+b
Is (1,0) a solution to the system of inequalities below?
y<2x-2
y>-4x+4
Why or why not?
No, it is on a dotted line, so it is not included.
What are the solutions of the equations: y=3x and y=x2
(0,0) and (3,9)
Find the maximum/minimum of the following quadratic equation: y=x2+4x+10
6
What is the equation of the following points?
{(-2, 5/4), (0, 5), (1,10), (3,40)}
y=5(2)x
What are the factors of the following: y=x2+4x-5
(x-1)(x+5)
What do the a and b stand for in the following equation: y=abx
a: the initial value/y-intercept
b: the multiplier
What is the standard form of the following quadratic:
y=(x+2)2+4
y=x2+4x+8
Min of 10, Max of 30, Median of 15, Q1 of 13 and Q3 of 21.
What percent of the data is below 21?
Can't put it here, so hopefully you know the answer.
75%
What is the quadratic equation of the following points?
(1,0), (0,-5), (-2,-3)
y=2x2+3x-5
What is (2x3+6x2-6)-(4x3-2x2-2x+7)?
-2x3+8x2+2x-13
The area, in square units, of a rectangle is represented by 18x3-12x2+9x. If the width, in units, is 3x, what is the length, in units?
length=6x2-4x+3
How do I find the correlation coefficient on Desmos?
insert table, add points, type out equation, look for the r value
Lauren is working for her dad during the summer. Her dad says he will give her $3 to start, but then double the amount every week. Write an equation that models this situation and find how much she will have made after 8 weeks.
y=3(2)x
She will have made $768.
Solve the following equation for x.
2x+5y=20
x=-5/2y+10
OR
x=-2.5y+10
What would be the explicit equation for the following sequence:
2, 12, 72, 432,...
an=2(6)n-1
What is a residual?
OR
How do I find a residual in Desmos?
The actual y-value of a point minus the predicated y-value from the line of best fit
OR
Add a table, add the points, type in the appropriate function, select the "e1 plot" button. Look at the new column it gives.