Unit 1 - 5 Review

Front

What does the inequality k < 3 represent on a number line?

Back

It represents all values of k that are less than 3, which is shown as an open circle at 3 and a line extending to the left.

Front

Evaluate the expression 7a + 8b - 2^3 when a = 3 and b = 4.

Back

45

Front

What is the condition for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

Front

Solve the equation 6x + 4 = 9x - 5.

Back

x = 3.

Front

What is the solution to the equation \frac{6}{5}(5 - 4g) = -18?

Back

g = 5.

Front

What does the graph of the inequality k < 3 look like?

Back

A number line with an open circle at 3 and a shaded line extending to the left.

Front

How do you evaluate an expression with multiple variables?

Back

Substitute the values of the variables into the expression and perform the arithmetic operations.

Front

What is the slope-intercept form of a line?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the significance of an open circle in graphing inequalities?

Back

An open circle indicates that the number is not included in the solution set.

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).