Linear Equations and Inequalities
Question #28
C. 2/3
The maximum point or minimum point on a parabola is called...
The vertex
Question #22
B. (-2,3)
f(x)= 386(1.4)x
40%
Question #23
B. 10 Square root 6
A student works at a job which plays $5.00 per hour. This week the student also received a bonus of $75. If the total pay for the week was $200, how many hours did the student work?
25 hours
When a parabola crosses the x-axis, what are those points called? (Hint: There are 4)
zero, root, solution, x-intercept.
Solve this system of equations: x=5y and 2x+3y=-13
(-5,-1)
What is the equation of the asymptote of the graph of the function y=19(1.25)x?
y=0
Question 46
B
Question 34
D. t=18.99c + 7.95
Solve for x: 4x2 + 23x - 6
x=-6 and x=1/4
Solve this system of equations: -4x-15=5y and 5y=11-4x
no solution
This year the number of students who went to prom was 347. Each year the number of students who go to prom decreases by 3%.
What function can be used to model the number of students participating in sports after x years?
f(x) =347(.97)x
Question 2
A. h(x)= x2+2x-3
Ms. Sumner is having her lawn mower tuned up. The Sears repairman charges $50 service call plus $35 per hour. Write an equation to represent the money Ms. Sumner will pay depending on the "x" hours the repairman works.
y = 35x + 50
Question #31
B. All real numbers less than or equal to 19/4
Solve this system of equations: -5x+20=5y and-2x+y=7
(-1,5)
Question 41
A. the y-intercept of the graph is 650
Question #33
B. w=8
Solve for x: 3-(x+8) < -4x-26
x < -7
Question 40
A
Solve this system of equations: y = 2x - 3 and -4x + 2y = -6
infinite solutions
What is the domain, range, and asymptote of
f(x)= -2x+3+1
Domain: All real numbers
Range: y<1
Asymptote: Horizontal, y=1
Question 30
A. 27,9,3,1