Math 10 – Formative Assessment on Writing Equations
1. What is the equation of a line that has slope 8 and passes through R(4, -3).
A.
B.
D.
C.
2. Determine the equation of the line that passes through A(6, 0) and is perpendicular to the line
formed by B(-4, 9) and C(-7, 10).
A.
B.
C.
D.
in slope – intercept form would be
A.
A.
B.
C.
4. Using the following graph, answer the question to the right.
What is the cost of hiring an electrician for 8
hours?
5. Determine the slope of the linear relation
A.
C.
A. $550
B. $475
C. $400
D. $275
B.
D.
6. A lawyer charges an initial fee of $150 and then $95 for every hour he works. If C represents
cost and t represents time, which of the following equations best describes this situation?
A. C = 150t + 95
B. C = 95t + 150
C. t = 150C + 95
D. t = 95C + 150
Quiz on Writing Linear Equations – Outline
Slope-intercept form (y = mx + b)
Slope-point form (y – y1) = m(x – x1)
General form (Ax + By + C = 0)
You should be able to:
 Express a linear relation in different forms
 Rewrite a linear relation in either slope-intercept form or general form
 Graph a linear relation given in slope-intercept form, general form, or slope-point form, and
explain the strategy used to create the graph
 Match a set of linear relations to their graph
 Identify equivalent linear relations from a set of linear relations
 Determine the slope and y-intercept of a given linear relation from its graph, and write the
equation in the form y = mx + b
 Write the equation of a linear relation, given its slope and the coordinates of a point on the line,
and explain the reasoning
 Write the equation of a linear relation, given the coordinates of two points on the line, and explain
the reasoning
 Write the equation of a linear relation, given the coordinates of a point on the line and the
equation of a parallel or perpendicular line, and explain the reasoning
 Graph linear data generated from a contextual situation, and write the equation of the resulting
line
 Solve a problem, using the equation of a linear relation