Write the equation of this function:
x y
1 -5
2 -2
3 1
4 4
y = 3x - 8
y = 3(x - 1) - 5
Determine if this set of points is a function:
{(0, 3), (2, -1), (-1, 3), (1, 4)}
Yes it is a function
Find the perimeter of a triangle if the three sides are 2x+7, 3x-1, and 4x-8.
9x-2
Describe the meaning of the slope: A study was done to see the relationship between the time it takes, x, to complete a college degree and the student loan debt incurred, y. The equation of the regression line was found to be y = 25142 + 14329x.
Each year, a student incurs $14,329 in debt.
One spring day, Sophia noted the time of day and the temperature, in degrees Fahrenheit. Her findings are as follows: At 6 a.m., the temperature was 58° F. For the next 3 hours, the temperature rose 4° per hour. For the next 5 hours, it rose 1° per hour. The temperature then stayed steady until 6 p.m. For the next 3 hours, the temperature dropped 2° per hour. The temperature then dropped steadily until the temperature was 67° at midnight. What is the RANGE of this function?
[58, 75]
4x + 3(x - 2) = 5x - 20
x = -7
factor x2 - 49
(x + 7)(x - 7)
f(x) = -2x + 4
g(x) = 4*2x
What is f(3) + g(1)?
6
Paco went to the movies. He spent a total of $50. He spent $10 on food and saw 8 movies. How much did each movie cost?
5
Find the area of a rectangle, in terms of the width, if the length is 2 more than 5 times the width.
5x2 + 2x
find the distance between ( 5,2) and (-2,3)
7.07
What is the equation of the line containing the points (-1,5) and (3,9)?
y = x + 6
June and Kevin own a camping supply store and put in an order for flashlights and sleeping bags. The number of flashlights ordered was five times the number of sleeping bags ordered. The flashlights cost $12 each and the sleeping bags cost $45 each. The total cost for the flashlights and sleeping bags was $1785. How many sleeping bags did they order?
17 sleeping bags
Factor: 3n2 -15n - 18
3(n - 2)(n - 3)
Write the equation for the following situation: Jocelyn earns a starting salary of $45000. Each year, she gets a 3.5% raise.
y = 45000*1.035x
At a baseball game, Jose bought five hot dogs and three sodas for $17. At the same time, Allison bought two hot dogs and four sodas for $11. Find the cost of one hot dog and one soda.
hot dogs $2.50 soda $1.50
Factor: 2x2 - 11x - 21
(2x + 3)(x - 7)
Who is the best math teacher you've had all year?