Find the solutions to the following quadratic equation:
(x-5)(x+9)=0
x = 5 and x = -9
Algebra: Is this a function: {(1, 2), (-2, 3), (2, 4)}
Yes, the domain does not repeat.
Equivalent
A - same as
B- Equal to
C - both are correct
C - both are correct
Julia traveled to Argentina and Chile for a total of 16 days. In Argentina, she learned 125 new words per day. In Chile, she learned 140 new words per day. She learned a total of 2145 words. Write a system of equations using x for Argentina and y for Chile.
x + y = 16
125x + 140y = 2145
D
What is the parent function y=x2?
a. Linear
b. Quadratic
c. Exponential
b. Quadratic
What inequality would you use for a dotted line shaded about?
a. <
b. >
c. < and equal to
d. > and equal to
B
Find the roots to the quadratic equation:
2x2=200
x = 10 and x = -10
f(x) = 3x2 - 5x + 2
Find f(2).
f(2) = 4
a vertical line that cuts through the middle of the parabola, dividing it into two equal halves
a - Maximum of parabola
B x - intercept
C line(axis) of symmetry
C
Solve the following system of equations:
6x − 12y = 24
−x − 6y = 4
(2, -1)
Simplify (45)2
410
If you want to type this equation into desmos, what do you HAVE to do?
3w + 14
Change the variable to x
How do you insert a table when no function is given?
In Desmos, click plus and add table.
What are the zeros of the following quadratic equation?
2m2 + 2m − 12 = 0
-3,2
f(x) = 3x2 + 5x + 2
Find when f(-1) ?
0
Solve: 4(x+1) = 2x + 2
x= -1
Solve the following system of equations:
x + 7y = 0
2x − 8y = 22
(7, -1)
D
If the question contains the word 'equivalent', most likely you'll have to do what with the answer choices?
Type each one in Desmos and see which matches the question.
How do you get the equation after entering a table?
DESMOS - line with dots tool
Find the solutions to the following quadratic:
2x2 − 3x − 5 = 0
x = 5/2
x = -1
x2 + 10x + 25
(x + 5)(x + 5) or (x + 5)2
What is another term for rate of change?
Solve the following system of equations:
−8x − 10y = 24
6x + 5y = 2
(7, -8)
J
If the question is for System of Equations, and what you input into Desmos has an answer of parallel lines, what answer would be correct?
A infinite
B coordinate pair
C no solution
C No Solution.
What is the rate given the exponential function f(x) = 2(.75)x ?
25%
A water balloon is catapulted into the air so that its height h, in meters, after t seconds is
h = -4.9t2 + 24.5t + 1. What is the maximum height of the balloon? Round to the nearest tenth.
h = 31.6 meters
Write an exponential equation for this scenario.
I bought a house for $145,000. It appreciated at a rate of 7%.
f(x) = 145000(1.07)x
Roots of a parabola are the same as
A B and C
B X intercept
C Zeros
A
If two lines intersect, then the solution to the system is:
a. One solution
b. Infinitely Many Solutions
c. No solution
One solution
What is the correct factor of 25x2-64?
A(5x+8)(5x-8)
B (5x-8)(5x-8)
A (5x+8)(5x-8)
If the answer is resulting in a decimal, and the question asks for a fraction, you should use
A - a pencil to calculate the conversion
B - the fraction symbol in Desmos
C - move the decimal place back 2 places
B - the fraction symbol in Desmos
What is the rate of a given exponential function
f(x) = 1/2(1.05)x ?
5%