A | B |
 | F(x) = 30x + 12 |
What does an r value of 0.989 tell you? | The line is a good fit with the data. |
What is the y-intercept for the equation 7x + 2y = -12? | (0, -6) |
What is the x-intercept for the equation -3x – 5y = 21? | (-7,0) |
Write the equation y = 5 /6 x – 1 in standard form. | 5x – 6y = 6 |
Write the equation 3x + 2y = 8 in slope- intercept form. | Y= -3/2x + 4 |
Darla has $75 to spend at the book store. She decides to buy books and magazines with her money. Books cost $16 and magazines cost $8 each. Write an equation to represent the total number of books and magazines she can buy. | 16x +8y = 75 |
A toy manufacturer is designing a new triangular-shaped toy. The company would like the toy to have a specific area. Using the formula for the area of a triangle A = 1/2bh, solve your formula for height. | h = 2A/b |
What is the slope-intercept form of a line? | y = mx + b |
What is standard form of a line? | Ax+By = C |
May paints and sells ceramic vases for $35 each. She typically breaks three vases a month. Write a linear function to represent the total May earns for the vases, taking into account the ones she breaks. | f(x) = 35x – 105 |
Solve for x. 1/3(6x-12) - 7 = 13 | 12 |
What is the slope given 3x - 7y = 14? | 3/7 |
Write the equation of a line that passes through the points (3,4) and (-2,5). | y = -1/5x + 4.6 |
Sarah went to the movies and saw that adults cost $10.50, students cost $8.00, and she paid for herself and her husband. She also took some students, she paid $45.00, how many students did she take? | 3 |
Solve for x. 2x + 4(x - 7) - 3 = 4x - 1 | 16 |
Describe two ways to determine if a relation is a function. | The Vertical Line Test, Each Input has exactly one Output (all the x's are different) |
This represents the set of all the input values for a function. | Domain |
This is where the graph crosses the x- axis | x-intercept |
What is the slope formula? | (y2-y1)/(x2-x1) |